The principle of humane treatment, as Jean Pictet wrote in 1958, is in truth the leitmotiv of the four Geneva Conventions of 1949. Article 3 common to these Conventions and other provisions of International Humanitarian Law embody this absolute and minimum rule by prohibiting torture, cruel or inhuman treatment and outrages upon personal dignity. These notions can be interpreted in meaningful and practical ways through the existing instruments and jurisprudence on the prohibition of ill-treatment. Their assessment must take into account the need to respect the human being in all his or her physical, mental and moral integrity, mindful of all the circumstances of the case.