- 15 21. The CPT has taken note of the explanations given by the Greek authorities concerning the administrative procedures applied in cases concerning allegations of ill-treatment by law enforcement officials (cf. CPT/Inf (94) 21, pages 57 et seq.). However, the information available to the Committee suggests that those procedures do not always operate in a satisfactory manner. By way of example, according to information provided to the delegation by nongovernmental organisations, in a case concerning two young persons of Roma ethnicity who had sustained various injuries while detained at Messolongi Police Station in May 1998, an internal police inquiry concluded that the police had behaved with exceptional brutality towards them, but no sanctions were imposed because it was said to be impossible to attribute guilt. In another case, involving the alleged beating by Coast Guard officers of a number of foreigners detained in Crete in May 2001, the disciplinary proceedings initiated to investigate the case apparently examined only whether the officers in question had performed their duties in an inappropriate manner, without considering the question of ill-treatment. The CPT would like to receive the Greek authorities' comments on the above. 22. Systems for the inspection of law enforcement agency detention facilities by an independent authority can also make a significant contribution towards the prevention of ill-treatment of persons in custody and, more generally, towards ensuring satisfactory conditions of detention. To be fully effective, visits by such an authority should be both regular and unannounced, and the authority concerned must be empowered to talk in private with detained persons. In previous visit reports, the CPT examined the potential role of the judicial and prosecuting authorities in the supervision of the situation of persons detained by the police (cf. CPT/Inf (2001) 18, Part I, paragraph 18, and the response of the Greek authorities, CPT/Inf (2001) 19, pages 78 and 79). However, during the 2001 visit, the CPT's delegation found no evidence to suggest that such authorities are regularly exercising on-the-spot supervision of places of detention. Consequently, the CPT recommends that the Greek authorities establish a system of regular visits to law enforcement agency establishments by an independent authority, having regard to the preceding remarks.