CEDH · CASELAW;JUDGMENTS;GRANDCHAMBER;ENG — 28 septembre 2015

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BELGIUM   (Application no. 23380/09)                     JUDGMENT               STRASBOURG   28 September 2015       This judgment is final. In the case of Bouyid v. Belgium, The European Court of Human Rights, sitting as a Grand Chamber composed of:   Dean Spielmann, President ,   Guido Raimondi,   Isabelle Berro,   Alvina Gyulumyan,   Ledi Bianku,   Nona Tsotsoria,   Nebojša Vučinić,   Vincent A. De Gaetano,   Paulo Pinto de Albuquerque,   Erik Møse,   Helen Keller,   Paul Lemmens,   Paul Mahoney,   Krzysztof Wojtyczek,   Faris Vehabović,   Egidijus Kūris,   Iulia Motoc, judges , and Johan Callewaert, Deputy Grand Chamber Registrar , Having deliberated in private on 8 October 2014 and 24 June 2015, Delivers the following judgment, which was adopted on the last-mentioned date: PROCEDURE 1.     The case originated in an application (no. 23380/09) against the Kingdom of Belgium, lodged with the Court under Article 34 of the Convention for the Protection of Human Rights and Fundamental Freedoms (“the Convention”) by two Belgian nationals, Mr   Saïd Bouyid (“the first applicant”) and Mr Mohamed Bouyid (“the second applicant”), on 28 April 2009. 2.     The applicants were represented by Mr C. Marchand and Mr   Z.   Chihaoui, lawyers practising in Brussels. The Belgian Government (“the Government”) were represented by their Agent, Mr M. Tysebaert, Senior Adviser, Federal Justice Department. 3.     Alleging, in particular, that they were both slapped by police officers while they were in a police station, the applicants complained of degrading treatment and argued that they were victims of a violation of Article 3. 4.     The application was allocated to the Fifth Section of the Court (Rule   52 § 1 of the Rules of Court). In a judgment delivered on 21   November 2013 a Chamber of that Section declared the application admissible in respect of the complaint under Article 3 of the Convention and the remainder inadmissible, and unanimously found that there had been no violation of Article 3. The Chamber was composed of Mark Villiger, President, Ann Power-Forde, Ganna Yudkivska, André Potocki, Paul Lemmens, Helena Jäderblom and Aleš Pejchal, judges, and Stephen Phillips, Deputy Section Registrar. On 24 January 2014, under Article 43 of the Convention, the applicants requested referral of the case to the Grand Chamber. A panel of the Grand Chamber acceded to this request on 24   March 2014. 5.     The composition of the Grand Chamber was decided in accordance with Article 26 §§ 4 and 5 of the Convention and Rule 24. 6.     Both the applicants and the Government submitted further observations on the merits (Rule   59   §   1). 7.     The non-governmental organisation REDRESS and the Human Rights Centre of the University of Ghent were granted leave to intervene in the written procedure (Article 36 § 2 of the Convention and Rule 44 § 3). 8.     A public hearing was held in the Human Rights Building, Strasbourg, on 8 October 2014 (Rule 59 § 3).   There appeared before the Court: (a)     for the Government Ms   I. Niedlispacher ,   Co-Agent ; (b)     for the applicants Mr   C. Marchand , Mr   Z. Chihaoui ,   Counsel .   The Court heard statements by Mr Marchand, Mr Chihaoui and Ms   Niedlispacher, and the replies given by Mr Marchand and Ms   Niedlispacher to the questions put by judges. THE FACTS I.     THE CIRCUMSTANCES OF THE CASE 9.     The applicants were born in 1986 and 1979 respectively and live in Saint-Josse-ten-Noode (a district of the Brussels-Capital region). 10.     The applicants are brothers who live with their parents, their brother and two sisters next to the local police station of Saint-Josse-ten-Noode. They both complained that they had been slapped in the face by police officers – which allegation is disputed by the Government – one on 8   December 2003 and the other on 23 February 2004. They submitted that those events had taken place against a background of tense relations between their family and certain officers in the police station. A.     Events of 8 December 2003 and 23 February 2004 1.     The events of 8 December 2003 11.     The applicants submitted that on 8 December 2003, at around 4 p.m., the first applicant had been standing with a friend in the street outside the door of the building where he lived with his family and, since he had forgotten his keys, had been ringing the bell so that his parents would let him in, when a plain-clothes policeman, A.Z., had asked him to show him his identity card. The first applicant had refused to comply, asking the officer to show him his credentials. The officer had then grabbed him by his jacket – tearing it – and taken him to the police station. The first applicant had been placed in a room and, while he was alone with A.Z., the officer had slapped him in the face as he was protesting about his arrest. 12.     The applicants provided a certificate issued at 7.20 p.m. on the same day by a general practitioner attesting that the first applicant had been “in a state of shock” and had presented the following injuries: “erythema on the left cheek (disappearing)” and “erythema on the left-side external auditory canal”. 13.     The Government submitted that, on account of the first applicant’s refusal to show him his identity card, Officer A.Z. had had no choice but to take him to the police station for identification. The first applicant had then caused a scene, claiming to have suffered an injustice and been subjected to an unlawful identity check, and had insulted an officer who was telling him to calm down. He had been allowed to leave the police station once his identity had been verified and after being informed by A.Z. that a police report would be filed against him for forceful resistance to a public officer, abusive behaviour and verbal threats. He had returned to the police station a few minutes later with his parents, accusing A.Z. of having struck him, but the officer had always denied this. 14.     At 6 p.m. A.Z. had lodged a criminal complaint against the first applicant, alleging forceful resistance to a public officer, abusive behaviour and verbal threats. The record drawn up on that occasion showed that A.Z. had notified his superiors of the events at 5.30 p.m., as well as a certain Superintendent K. 2.     The events of 23 February 2004 15.     The applicants indicated that on 23 February 2004, between 9.44   a.m. and 10.20 a.m. (as shown by the record of the second applicant’s questioning), while the second applicant was at the Saint-Josse-ten-Noode police station and Officer P.P. was interviewing him about an altercation involving him and his mother together with a third party (and about which the latter had filed a complaint), P.P. had slapped him in the face after asking him not to lean on his desk. He had then forced him to sign his statement by threatening to put him in a cell. 16.     The applicants provided a medical certificate issued on the same day by a general practitioner, who observed “bruising [on the] left cheek” of the second applicant. The certificate did not specify the time at which it had been drawn up, although it must have been before 11.20 a.m., the time at which it was presented to the Standing Committee for the oversight of police services (known as “Committee P” – see paragraph 25 below). 17.     The Government explained that the second applicant had been very arrogant during his interview: slouching in his chair, leaning casually on P.P.’s desk, laughing without any reason and giving pithy answers to questions. He had also had his statement changed several times, saying that the police were paid to do that, and had threatened the officers on leaving by shouting that they would be hearing from him again. The Government emphasised that, in spite of the attitude shown by the second applicant, who had clearly been intent on conflict, P.P. had remained calm and patient. B.     Background to the events 18.     In the applicants’ submission, their family had been harassed by the Saint-Josse-ten-Noode police force. They stated that the problems had begun in 1999, when one of the officers had suspected N. of deliberately scratching his car. N. had subsequently been charged with threatening the same officer and committing robberies, on which charges he had been acquitted by the Brussels Youth Court on 21 April 2000. According to the applicants, the case against him had been entirely fabricated by members of the Saint-Josse-ten-Noode police force by way of reprisal. 19.     They added that on 24 June 1999 the first applicant, then aged 13, had been “beaten” by another police officer in the police station, where he had been taken following a fight in the street. He had sustained a perforated eardrum. His mother and one of his sisters, who had been in the waiting room, had been shaken and manhandled by police officers. 20.     On 25 November 1999 one of their sisters had been verbally abused by an officer of the Saint-Josse-ten-Noode police force, and on 11 March 2000 their brother, N., had been searched, jostled and verbally abused by police officers. 21.     They further stated that in 2000 a “case ... initiated by the Saint ‑ Josse-ten-Noode police force had been opened against N. and entrusted to an investigating judge”, but the proceedings had been discontinued. In the same year the second applicant had been “wanted for questioning” and, even though the Saint-Josse-ten-Noode police force had announced on 23 July 2002 that he was being taken off the relevant “wanted” list, he had still had to make various applications to the prosecutor’s office and wait until March 2005 for the process to be completed, causing him a great deal of inconvenience. 22.     On 6 April 2001 and 12 July 2001 respectively, N. and the second applicant had been verbally abused by officers of the Saint-Josse-ten-Noode police force. 23.     The applicants explained that they had systematically reported to the judicial authorities or police all the incidents of which they had been victims, and had filed complaints. C.     Complaints concerning the events of 8 December 2003 and 23   February 2004, civil-party application, judicial investigation and decision to discontinue proceedings 24.     At 9.42 a.m. on 9 December 2003 the first applicant filed a complaint with Committee P and was interviewed by a member of the investigation department. A copy of the medical certificate drawn up the previous day was appended to the initial record. 25.     The second applicant followed suit at 11.20 a.m. on 23 February 2004. He indicated in particular that he considered that the “general attitude of the Saint-Josse-ten-Noode police force vis-à-vis [his] family [had become] absolutely intolerable and excessive to the point [where they had envisaged] moving house”. A copy of the medical certificate drawn up the same day was appended to the initial record. 26.     The applicants’ mother was also interviewed on 23 February 2004 by the investigation department of Committee P in relation to the second applicant’s complaints. She pointed out that as soon as they had returned home she had called Superintendent K. (see paragraph 14 above) to ask him to persuade P.P. to apologise. Superintendent K. had immediately come to their house, where he had found himself in the company of the physician who had drawn up the medical certificate. The applicants’ mother also filed a complaint, indicating, moreover, that she herself had been treated with scant respect by Officer P.P. 27.     On 5 May 2004 Officer P.P. was interviewed by the director of internal oversight of the local police force in relation to the complaints by the second applicant and his mother. P.P. stated in particular that the second applicant had been particularly disrespectful towards him during his interview and that, although he had grabbed the youth by the arm to make him leave the office, he had not slapped him in the face. 28.     On 17 June 2004 the applicants applied to intervene as civil parties in respect of charges of harassment, arbitrary interference with fundamental freedoms, abuse of authority, arbitrary arrest and wounding with intent. They gave an overview of all their difficulties with the Saint ‑ Josse ‑ ten ‑ Noode police force, and expressly stated that they wished to intervene as civil parties in relation to the events of 8 December 2003 and 23   February 2004. 29.     Officers A.Z. and P.P. were charged with using violence against individuals in the course of their duties and, in particular, with intentional wounding or assault, and with engaging in arbitrary acts in breach of the rights and freedoms guaranteed by the Constitution. 30.     On 26 June 2004 an investigating judge of the Brussels Court of First Instance gave directions to the investigation department of Committee   P asking it to take note of the applicants’ civil-party application, to interview them in order to ascertain the details of their complaint, to draft a report on the conduct of the Bouyid family, to draw up a list of the cases brought against them and complaints filed by them, and to explain what action had been taken in that connection. 31.     Having regard to the fact that it had already taken testimony from the applicants when they had filed their respective complaints (see paragraphs   24-25 above), the investigation department of Committee P decided not to interview them again. On 26 July 2004 it forwarded a report to the investigating judge, based on the documents from the internal oversight department of the police district covering Saint-Josse-ten-Noode, describing developments in the relations between the applicants’ family and the local police force. The report then listed the cases against the family, noting in this connection that the first applicant had been implicated in proceedings opened in December 2003 for abusive and threatening behaviour and for obstructing a police officer, and N. in seven sets of proceedings opened between October 1997 and June 1999. It then noted that, in addition to the applicants’ complaints in issue in the present case, three judicial complaints had been filed by members of their family (two with Committee P, in June 1999 and July 2001, and one with the “Youth Division” in 1999) and two complaints had been dealt with by the internal oversight department of the police district covering Saint-Josse-ten-Noode. Lastly, citing a report drawn up in the context of a case against the first applicant and the findings of administrative inquiries, it noted the problematic nature of the relations between the local police and the Bouyid family and commented on the “general behaviour” of the latter, observing as follows. “In sum, according to the police officers, the Bouyid family (especially the women and the mother in particular) apparently refuse to admit that the children of the family bear any responsibility for the abusive conduct in question. The children are thus supported in their behaviour by this protective attitude. More generally, the family members are said to behave aggressively and provocatively towards the police. Following the incidents involving police officer [B.], a dialogue facilitator apparently failed in an attempt at reconciliation, owing to an intransigent attitude on the part of the women in the Bouyid family. In 1999 and 2000 the situation required the appointment of a police cadet as a mediator for this family.” 32.     On 3 August 2004 the investigating judge decided to close the investigation and sent the file to the prosecuting authorities. 33.     On 16 November 2004 Officer A.Z. was interviewed by a member of the investigation department of Committee P about the events of 8   December 2003. He stated in particular that he had not previously known the first applicant when he had taken him to the Saint-Josse-ten-Noode police station that particular day. 34.     In an application of 10 November 2005, the Crown Prosecutor called for the discontinuance of the case on the ground that “the judicial investigation [had] not established that the facts constituted a serious or petty offence and [had] not adduced any evidence that would justify the taking of further measures”. 35.     The applicants were informed that the case file would be finalised before the Committals Division of the Brussels Court of First Instance on 2   March 2006. On 1 March 2006 they sent an application to the investigating judge seeking twenty additional investigative measures. That request resulted in the adjournment sine die of the case before the Committals Division. 36.     On 7 March 2006 the investigating judge ordered two of the requested measures and rejected the remainder of the application on the grounds that it concerned facts that predated the events referred to him and that the measures sought were not necessary for establishing the truth. Consequently, recapitulating all their complaints against the Saint ‑ Josse ‑ ten ‑ Noode police force, the applicants and other members of their family sent the investigating judge a request for an “extension of civil-party status”, but it was rejected. The two additional measures were put into effect on 25   April, 15 May and 24 May 2006. 37.     In an order of 27 November 2007, the Committals Division, endorsing the grounds set out in the Crown Prosecutor’s application, discontinued the proceedings. 38.     The applicants appealed against that order. 39.     In an application of 3 December 2007, the Principal Crown Prosecutor requested that the discontinuance order be upheld. 40.     On 5 February 2008 the applicants and other members of their family filed a complaint as civil parties in respect of all the facts that the investigating judge had considered not to have been referred to him (see paragraphs 43-44 below). 41.     On 9 April 2008 the Indictments Division of the Brussels Court of Appeal, after refusing to join the case concerning the events of 8 December 2003 and 23 February 2004 to the new case that had been opened after the civil-party complaint of 5 February 2008, upheld the discontinuance order in a judgment that read as follows. “... The facts of the case can be summarised as follows: –     On 8 December 2003 the defendant [A.Z.] is alleged to have engaged in illegal police conduct against the civil party Saïd Bouyid, described by the latter as follows: police officer [A.Z.], on stopping him outside his house, allegedly grabbed him by his jacket and tore it; he was then taken to the police station close by, where the same officer allegedly slapped him on the face with his right hand. –     On 23 February 2004 the defendant [P.P.] is alleged to have engaged in illegal police conduct against the civil party Mohamed Bouyid, described by the latter as follows: on stopping his car in front of his house so that his mother could take out her shopping, he had a row with the driver of the car behind; he was summoned to the police station following a complaint by that driver; during the interview, Mohamed Bouyid was allegedly slapped by the defendant [P.P.] (see the medical certificate issued by Dr ...), who threatened to put him in a cell if he did not sign his statement, when in fact he wanted to change it. –     The Bouyid family have apparently encountered great difficulties with certain members of the Saint-Josse-ten-Noode police force since March 1999, when police officer [B.] suspected [N.] Bouyid of having scratched his car, giving rise to a certain degree of tension and to persecution of this family by the police. –     There is said to be constant provocation on the part of the police of Saint-Josse-ten-Noode making the life of the Bouyid family unbearable. Both the police’s internal oversight department for the police district [concerned] and the investigation department of Committee P conducted an in-depth investigation into the facts complained of by the civil parties. It transpires from all the findings of the judicial investigation, and in particular from the inconsistent statements of the parties in question, that there is no evidence against the defendants such as to justify their committal on the charges listed in the submissions of the Principal Crown Prosecutor, in respect of the period in which the offences were said to have been committed. The statements of the defendants, who deny the charges, are consistent; it is appropriate in this connection to refer to the detailed report concerning the general conduct of the civil parties’ family drawn up by Committee P, which sheds light on the general context of the case. The civil parties have not adduced before the court, sitting as the Indictments Division, any new, relevant and convincing information not previously brought to the attention of the court below and capable of revealing the slightest evidence against the defendants that might justify their committal for trial. Moreover, the judicial investigation did not bring to light sufficient evidence to show that a criminal offence had been committed by the defendants at the time of the incidents in which they were allegedly implicated. In addition, it does not appear from the case file that the provisions of section 37 of the Law of 5 August 1992 on police duties have not been complied with. As emphasised by the submissions of both the Crown Prosecutor of 10 November 2005 and those of the Principal Crown Prosecutor, and by the decision of the Committals Division, the facts of the present case do not constitute a serious or petty criminal offence. ...” 42.     An appeal on points of law lodged by the applicants – relying in particular on Articles 3, 6 and 13 of the Convention – was dismissed on 29   October 2008 by the Court of Cassation. D.     The civil-party complaint concerning events prior to those of 8   December 2003 and 23 February 2004 43.     On 5 February 2008 six members of the Bouyid family, including the two applicants, had filed a civil-party complaint with an investigating judge of the Brussels Court of First Instance concerning all their accusations against the Saint-Josse-ten-Noode police officers, in particular relating to facts that predated the events of 8 December 2003 and 23 February 2004. 44.     The civil-party complaint led to the appearance of six officers before the Brussels Court of First Instance, hearing the case on the merits. In a judgment of 30 May 2012, the court declared that the prosecution of the relevant offences was time-barred. It does not appear from the file that an appeal was lodged against that judgment. II.     INTERNATIONAL TEXTS, INSTRUMENTS AND DOCUMENTS A.     The concept of dignity 45.     The Preamble to the 26 June 1945 Charter of the United Nations affirms the determination of the peoples of the United Nations “to reaffirm faith in fundamental human rights, in the dignity and worth of the human person, in the equal rights of men and women and of nations large and small”. The concept of dignity is also mentioned in the Universal Declaration of Human Rights of 10 December 1948, the Preamble to which states that “recognition of the inherent dignity and of the equal and inalienable rights of all members of the human family is the foundation of freedom, justice and peace in the world”, and Article 1 of which provides that “all human beings are born free and equal in dignity and rights”. 46.     Many subsequent international human rights texts and instruments refer to this concept, including: (a)     the UN Declaration on the Elimination of All Forms of Racial Discrimination of 20 November 1963, which “solemnly affirms the necessity of speedily eliminating racial discrimination throughout the world, in all its forms and manifestations, and of securing understanding of and respect for the dignity of the human person”, and the International Convention on the Elimination of All Forms of Racial Discrimination of 21   December 1965 (ratified by Belgium), the Preamble to which refers to that Declaration; (b)     the International Covenant on Civil and Political Rights and the International Covenant on Economic, Social and Cultural Rights of 16   December 1966 (both ratified by Belgium), the Preamble to which states that the equal and inalienable rights of all members of the human family “derive from the inherent dignity of the human person”. Furthermore, Article 10 of the former provides that “all persons deprived of their liberty shall be treated with humanity and with respect for the inherent dignity of the human person”, and Article 13 of the latter states that the “States Parties ... recognize the right of everyone to education ... [and] agree that education shall be directed to the full development of the human personality and the sense of its dignity, and shall strengthen the respect for human rights and fundamental freedoms ...”; (c)     the Convention on the Elimination of All Forms of Discrimination against Women of 18 December 1979 (ratified by Belgium), the Preamble to which emphasises in particular that discrimination against women “violates the principles of equality of rights and respect for human dignity”; (d)     the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment of 10 December 1984 (ratified by Belgium), the Preamble to which points out that the “equal and inalienable rights of all members of the human family ... derive from the inherent dignity of the human person”; (e)     the Convention on the Rights of the Child of 20 November 1989 (ratified by Belgium), the Preamble to which states that “the child should be fully prepared to live an individual life in society, and brought up in the spirit of the ideals proclaimed in the UN Charter, and in particular in the spirit of peace, dignity, tolerance, freedom, equality and solidarity” (see also Articles 23 § 1, 28 § 2, 37, 39 and 40 § 1); (f)     the International Convention for the Protection of All Persons from Enforced Disappearance (Articles 19 § 2 and 24 § 5 (c)) (ratified by Belgium); (g)     the Convention on the Rights of Persons with Disabilities (ratified by Belgium), the Preamble to which states that “discrimination against any person on the basis of disability is a violation of the inherent dignity and worth of the human person”, and the aims of which include promoting respect for the “inherent dignity” of persons with disabilities (Article 1), this being also one of its general principles (Article 3 (a)) (see also Articles   8   (a), 16 § 4, 24 § 1 and 25); (h)     the Second Optional Protocol to the International Covenant on Civil and Political Rights on the abolition of the death penalty of 15 December 1989 (ratified by Belgium), the Preamble to which expresses the conviction that “abolition of the death penalty contributes to enhancement of human dignity and progressive development of human rights”; (i)     the Optional Protocol to the Convention on the Rights of the Child on a communications procedure of 19 December 2011 (ratified by Belgium), the Preamble to which reaffirms “the status of the child as a subject of rights and as a human being with dignity and with evolving capacities”; (j)     the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights of 10 December 2008 (ratified by Belgium) and the Optional Protocol to the Convention on the Elimination of All Forms of Discrimination against Women of 6 October 1999 (ratified by Belgium). 47.     Several regional human rights texts and instruments also refer to the concept of dignity, including the following: (a)     the American Convention on Human Rights of 22 November 1969 (Articles 5 § 2, 6 § 2 and 11 § 1); (b)     the Final Act of the Helsinki Conference on Security and Cooperation in Europe of 1 August 1975, which stipulates that the States “will promote and encourage the effective exercise of civil, political, economic, social, cultural and other rights and freedoms all of which derive from the inherent dignity of the human person and are essential for his free and full development” (Principle VII); (c)     the African Charter on Human and Peoples’ Rights of 27 June 1981, Article 5 of which lays down that “[e]very individual shall have the right to the respect of the dignity inherent in a human being and to the recognition of his legal status”; (d)     the Convention for the Protection of Human Rights and Dignity of the Human Being with regard to the Application of Biology and Medicine of 4   April 1997 (which Belgium has not signed), the Preamble to which affirms, inter alia , “the need to respect the human being both as an individual and as a member of the human species and ... the importance of ensuring [his] dignity”; (e)     the Charter of Fundamental Rights of the European Union of 7   December 2000, the Preamble to which affirms that being “[c]onscious of its spiritual and moral heritage, the Union is founded on the indivisible, universal values of human dignity, freedom, equality and solidarity”, and Article 1 of which states that “[h]uman dignity is inviolable [and] must be respected and protected” (see also Article 31 on “Fair and just working conditions”); (f)     Protocol No. 13 to the European Convention on Human Rights concerning the abolition of the death penalty in all circumstances of 3 May 2002 (ratified by Belgium), the Preamble to which points out that the abolition of the death penalty is essential for the protection of everyone’s right to life and for the full recognition of the “inherent dignity of all human beings”; (g)     the Council of Europe Convention on Action against Trafficking in Human Beings of 16 May 2005 (ratified by Belgium), the Preamble to which emphasises that “trafficking in human beings constitutes a violation of human rights and an offence to the dignity and the integrity of the human being” (see also Articles 6 and 16). B.     Documents of the European Committee for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment (CPT) 48.     In a document entitled “CPT standards” (CPT/Inf/E (2002) 1 – Rev.   2015), the CPT stated the following. “97.     Bearing in mind its preventive mandate, the CPT’s priority during visits is to seek to establish whether juveniles deprived of their liberty have been subjected to ill-treatment. Regrettably, deliberate ill-treatment of juveniles by law-enforcement officials has by no means been eradicated and remains a real concern in a number of European countries. CPT delegations continue to receive credible allegations of detained juveniles being ill-treated. The allegations often concern kicks, slaps, punches or blows with batons at the time of apprehension (even after the juvenile concerned has been brought under control), during transportation or subsequent questioning in law-enforcement establishments. It is also not uncommon for juveniles to become victims of threats or verbal abuse (including of a racist nature) whilst in the hands of law-enforcement agencies. ... 126.     ... In a number of [juvenile detention centres] visited by the CPT, it was not uncommon for staff to administer a so-called ‘pedagogic slap’ or other forms of physical chastisement to juveniles who misbehaved. In this regard, the CPT recalls that corporal punishment is likely to amount to ill-treatment and must be strictly prohibited.” The CPT also noted the following in its ninth general activity report (CPT/Inf (99) 12), dated 30 August 1999: “24.     In a number of other establishments visited [where juveniles were deprived of their liberty], CPT delegations have been told that it was not uncommon for staff to administer the occasional ‘pedagogic slap’ to juveniles who misbehaved. The Committee considers that, in the interests of the prevention of ill-treatment, all forms of physical chastisement must be both formally prohibited and avoided in practice. Inmates who misbehave should be dealt with only in accordance with prescribed disciplinary procedures.” 49.     In its report to the Belgian Government on its visit to Belgium from 18 to 27 April 2005 (CPT/Inf (2006) 15, 20 April 2006) the CPT stated, among other things. “11.     On the basis of all the information obtained during the visit, the CPT has come to the conclusion – as it did following its first three visits to Belgium – that the risk of a person being ill-treated by law-enforcement officers while in detention cannot be dismissed. Accordingly, the CPT recommends that the Belgian authorities continue to be vigilant in this area and make a special effort in the case of juveniles who have been deprived of their liberty. The CPT further recommends that law-enforcement officers be given an appropriate reminder at regular intervals that any form of ill-treatment of persons deprived of their liberty – including insults – is unacceptable, that any information regarding alleged ill-treatment will be properly investigated, and that anyone responsible for such treatment will be severely punished. 12.     More specifically, concerning allegations of ill-treatment by law-enforcement officers when arresting a suspect, the CPT has repeatedly noted that this process undeniably represents a difficult and dangerous task at times, in particular when the person concerned resists or the law-enforcement officers have good reason to believe that the person poses an imminent threat. However, the use of force when making an arrest must be kept to what is strictly necessary; furthermore, there can never be any justification for striking apprehended persons once they have been brought under control.” The CPT’s report on its visit to Belgium from 28 September to 7 October 2009 (CPT/Inf (2010) 24, 23 July 2010) contains the following passage in particular: “13.     In the course of its visits to police stations, the CPT delegation met only a few people who were deprived of their liberty. Nevertheless, while visiting prisons, it met a large number of people who had recently been in police custody. The majority of the detainees who spoke to the delegation did not report any instances of deliberate physical ill-treatment during their time in police custody. However, the delegation heard a limited number of allegations of excessive use of force (such as blows inflicted after the person had been brought under control, or excessively tight handcuffing) in the course of an arrest (particularly in Brussels, Charleroi and Marcinelle). As the CPT has often acknowledged, arresting a suspect is undeniably a difficult and dangerous task at times, in particular when the person concerned resists or the police have good reason to believe that the person poses an imminent threat. Nevertheless, the CPT recommends that police officers be reminded that when making an arrest, the use of force must be kept to what is strictly necessary; furthermore, there can never be any justification for striking apprehended persons once they have been brought under control.” C.     The European Code of Police Ethics 50.     In its Recommendation Rec(2001)10 on the European Code of Police Ethics adopted on 19 September 2001, the Committee of Ministers of the Council of Europe stated its conviction that “public confidence in the police is closely related to their attitude and behaviour towards the public, in particular their respect for the human dignity and fundamental rights and freedoms of the individual as enshrined, in particular, in the European Convention on Human Rights”. It recommended that the governments of member States be guided in their internal legislation, practice and codes of conduct of the police by the principles set out in the European Code of Police Ethics appended to the Recommendation, with a view to their progressive implementation and the widest possible circulation of the text. 51.     The Code states in particular that one of the main purposes of the police is to protect and respect the individual’s fundamental rights and freedoms as enshrined, in particular, in the Convention (paragraph 1). In the section on “Guidelines for police action/intervention” it stipulates that “[t]he police shall not inflict, instigate or tolerate any act of torture or inhuman or degrading treatment or punishment under any circumstances” (paragraph   36) and that they “may use force only when strictly necessary and only to the extent required to obtain a legitimate objective” (paragraph   37). Furthermore, “in carrying out their activities, [they] shall always bear in mind everyone’s fundamental rights” (paragraph 43) and “police personnel shall act with integrity and respect towards the public and with particular consideration for the situation of individuals belonging to especially vulnerable groups” (paragraph 44). D.     Vulnerability of minors 52.     The Preamble to the International Convention on the Rights of the Child (“child” being defined in Article 1 as being “every human being below the age of eighteen years unless under the law applicable to the child, majority is attained earlier”) of 20 November 1989 (ratified by Belgium) refers to the above-mentioned declarations and emphasises that the need to afford special protection to the child has been recognised in the Universal Declaration of Human Rights, the International Covenant on Civil and Political Rights (particularly in Articles 23 and 24), the International Covenant on Economic, Social and Cultural Rights (particularly in Article   10) and the relevant statutes and instruments of the specialised institutions and international organisations concerned with child welfare. 53.     Several subsequent international and regional texts are based on recognition of the need to take account of the vulnerability of minors. For instance, the Preamble to the Council of Europe Convention on the Protection of Children against Sexual Exploitation and Sexual Abuse of 25   October 2007 (ratified by Belgium) states that “every child has the right to such measures of protection as are required by his or her status as a minor, on the part of his or her family, society and the State”, the child being defined as “any person under the age of 18 years” (Article 3 (a)). Reference might also be made to Recommendation CM/Rec(2008)11 on the European Rules for juvenile offenders subject to sanctions or measures and Recommendation CM/Rec(2009)10 on integrated national strategies for the protection of children from violence, adopted by the Committee of Ministers of the Council of Europe on 5 November 2008 and 18 November 2009 respectively. The former instrument emphasises the extreme vulnerability of juveniles deprived of their liberty (Appendix to the Recommendation, § 52.1).The latter emphasises that “children’s fragility and vulnerability and their dependence on adults for the[ir] growth and development call for greater investment in the prevention of violence and protection of children on the part of families, society and the State”. Very recently the CPT highlighted the particular vulnerability of juveniles in the context of detention (24th General Report of the CPT, 2013-2014 (CPT/Inf   (2015) 1), January 2015 – see paragraph 3 and, under “Juveniles deprived of their liberty under criminal legislation”, paragraphs 98 and 99). THE LAW I.     ALLEGED VIOLATION OF ARTICLE 3 OF THE CONVENTION 54.     The applicants alleged that police officers had slapped them in the face while they were in the Saint-Josse-ten-Noode police station. They claimed to have been victims of degrading treatment. They further complained that the investigation into their complaints had been ineffective, incomplete, biased and excessively long. They relied on Articles 3, 6 § 1 and 13 of the Convention, the first of which reads as follows: “No one shall be subjected to torture or to inhuman or degrading treatment or punishment.” 55.     Reiterating that the Court was master of the characterisation to be given in law to the facts of the case and finding that these complaints covered the same ground, the Chamber found it appropriate to examine the applicants’ allegations solely under Article 3 of the Convention. The Grand Chamber agrees with this approach. It will therefore proceed in the same manner. A.     The Chamber judgment 56.     In its judgment the Chamber referred to the principles emerging from the Court’s case-law on Article 3 of the Convention. It referred in particular to the principle that where the events in issue lay wholly, or in large part, within the exclusive knowledge of the authorities, as in the case of persons within their control in custody, strong presumptions of fact would arise in respect of injuries occurring during such detention. It was then for the Government to provide a satisfactory and convincing explanation by producing evidence establishing facts which cast doubt on the account of events given by the victim. The Chamber also referred to the principle that where an individual was deprived of liberty or, more generally, was confronted with law-enforcement officers, any recourse to physical force which had not been made strictly necessary by the person’s own conduct diminished human dignity and was in principle an infringement of the right set forth in Article 3. It further referred to the principle that in order for ill-treatment to fall within the scope of Article 3 it had to attain a minimum level of severity. Furthermore, some forms of violence, although they might be condemned on moral grounds and also very broadly under the domestic law of the Contracting States, would not fall within Article 3. The Chamber further noted that the Government had disputed the fact that the applicants had been slapped by police officers, and had submitted that the medical certificates provided did not establish that the injuries recorded had been caused by such slaps. It nevertheless found it pointless to rule on the veracity or otherwise of the applicants’ allegations, considering that, even supposing that they were proved, the acts complained of by the applicants would not, in the circumstances of the case, constitute treatment in breach of Article 3 of the Convention. The Chamber concluded as follows (§   51): “... [E]ven supposing that the slapping took place, in both cases it was an isolated slap inflicted thoughtlessly by a police officer who was exasperated by the applicants’ disrespectful or provocative conduct, without seeking to make them confess. Moreover, there was apparently an atmosphere of tension between the members of the applicants’ family and police officers in their neighbourhood. In those circumstances, even though one of the applicants was only 17 at the time and whilst it is comprehensible that, if the events really took place as the applicants described, they must have felt deep resentment, the Court cannot ignore the fact that these were one-off occurrences in a situation of nervous tension and without any serious or long-term effect. It takes the view that acts of this type, though unacceptable, cannot be regarded as generating a sufficient degree of humiliation or debasement for a breach of Article   3 of the Convention to be established. In other words, in any event, the above-mentioned threshold of severity has not been reached in the present case, such that no question of a violation of that provision, under either its substantive or its procedural head, arises.” B.     The parties’ submissions 1.     The applicants 57.     As regards the substantive aspect of Article 3, the applicants complained that the Chamber had departed from the principles established by the Grand Chamber. They submitted that the Chamber had omitted to apply the presumptions of causality and severity involved in cases of violence against persons who had been deprived of their liberty or were under the control of the police. In such cases there was a presumption of a causal link between the marks left by blows and their imputability to the police, which could be rebutted by reasonable explanations from the alleged perpetrators. If that was not the case, the second presumption came into play where the victim was deprived of his or her liberty: since the use of physical force inherently infringed human dignity, any such act was presumed to be serious and incompatible with Article 3, although the alleged perpetrator could rebut that presumption by arguing that the use of force had been strictly necessary in the light of the victim’s behaviour. The applicants submitted that the Court could only examine the severity of the act “on a subsidiary basis” in determining whether it should be classified as “torture” or “inhuman or degrading   treatment”. 58.     The applicants stressed that medical certificates drawn up shortly after the material time showed that they had displayed traces of blows on leaving the police station. They inferred from this that the presumption of causality applied and noted that the Government, like the police services at the domestic level, had provided no explanations capable of rebutting