the absence of an express complaint, these authorities will be in a position to take action in good time if there are other indicia (e.g. visible injuries; a person’s general appearance or demeanour) that ill-treatment might have occurred. However, in the course of its visits, the CPT frequently meets persons who allege that they had complained of ill-treatment to prosecutors and/or judges, but that their interlocutors had shown little interest in the matter, even when they had displayed injuries on visible parts of the body. The existence of such a scenario has on occasion been borne out by the CPT’s findings. By way of example, the Committee recently examined a judicial case file which, in addition to recording allegations of ill-treatment, also took note of various bruises and swellings on the face, legs and back of the person concerned. Despite the fact that the information recorded in the file could be said to amount to prima-facie evidence of ill-treatment, the relevant authorities did not institute an investigation and were not able to give a plausible explanation for their inaction. It is also not uncommon for persons to allege that they had been frightened to complain about ill-treatment, because of the presence at the hearing with the prosecutor or judge of the very same law enforcement officials who had interrogated them, or that they had been expressly discouraged from doing so, on the grounds that it would not be in their best interests. It is imperative that prosecutorial and judicial authorities take resolute action when any information indicative of ill-treatment emerges. Similarly, they must conduct the proceedings in such a way that the persons concerned have a real opportunity to make a statement about the manner in which they have been treated. 29. Adequately assessing allegations of ill-treatment will often be a far from straightforward matter. Certain types of ill-treatment (such as asphyxiation or electric shocks) do not leave obvious marks, or will not, if carried out with a degree of proficiency. Similarly, making persons stand, kneel or crouch in an uncomfortable position for hours on end, or depriving them of sleep, is unlikely to leave clearly identifiable traces. Even blows to the body may leave only slight physical marks, difficult to observe and quick to fade. Consequently, when allegations of such forms of ill-treatment come to the notice of prosecutorial or judicial authorities, they should be especially careful not to accord undue importance to the absence of physical marks. The same applies a fortiori when the ill-treatment alleged is predominantly of a psychological nature (sexual humiliation, threats to the life or physical integrity of the person detained Appendices ► Page 75