18 JALLOH v. GERMANY JUDGMENT suffered further damage to his health. However, he had not produced any documentary evidence to support his allegations. B. The Court’s assessment 1. Relevant principles 67. According to the Court’s well-established case-law, ill-treatment must attain a minimum level of severity if it is to fall within the scope of Article 3. The assessment of this minimum level of severity is relative; it depends on all the circumstances of the case, such as the duration of the treatment, its physical and mental effects and, in some cases, the sex, age and state of health of the victim (see, inter alia, Price v. the United Kingdom, no. 33394/96, § 24, ECHR 2001-VII; Mouisel v. France, no. 67263/01, § 37, ECHR 2002-IX; and Naumenko v. Ukraine, no. 42023/98, § 108, 10 February 2004). Allegations of ill-treatment must be supported by appropriate evidence (see, mutatis mutandis, Klaas v. Germany, 22 September 1993, § 30, Series A no. 269). To assess this evidence, the Court adopts the standard of proof “beyond reasonable doubt” but adds that such proof may follow from the coexistence of sufficiently strong, clear and concordant inferences or of similar unrebutted presumptions of fact (see Ireland v. the United Kingdom, 18 January 1978, § 161 in fine, Series A no. 25, and Labita v. Italy [GC], no. 26772/95, § 121, ECHR 2000-IV). 68. Treatment has been held by the Court to be “inhuman” because, inter alia, it was premeditated, was applied for hours at a stretch and caused either actual bodily injury or intense physical and mental suffering (see Labita, cited above, § 120). Treatment has been considered “degrading” when it was such as to arouse in its victims feelings of fear, anguish and inferiority capable of humiliating and debasing them and possibly breaking their physical or moral resistance (see Hurtado v. Switzerland, 28 January 1994, opinion of the Commission, § 67, Series A no. 280), or when it was such as to drive the victim to act against his will or conscience (see, for example, Denmark, Norway, Sweden and the Netherlands v. Greece (the “Greek case”), nos. 3321/67, 3322/67, 3323/67 and 3344/67, Commission’s report of 5 November 1969, Yearbook 12, p. 186, and Keenan v. the United Kingdom, no. 27229/95, § 110, ECHR 2001-III). Furthermore, in considering whether treatment is “degrading” within the meaning of Article 3, one of the factors which the Court will take into account is the question whether its object was to humiliate and debase the person concerned, although the absence of any such purpose cannot conclusively rule out a finding of a violation of Article 3 (see Raninen v. Finland, 16 December 1997, § 55, Reports of Judgments and Decisions 1997-VIII; Peers v. Greece, no. 28524/95, §§ 68 and 74, ECHR 2001-III; and Price,