in exceptional cases which are duly justified; it will rarely, if ever, be justified in a prison context. Similarly, the practice found in certain countries of blindfolding persons in police custody should be expressly prohibited; it can severely hamper the bringing of criminal proceedings against those who torture or ill-treat, and has done so in some cases known to the CPT. 35. To be effective, the investigation must also be conducted in a prompt and reasonably expeditious manner. The CPT has found cases where the necessary investigative activities were unjustifiably delayed, or where prosecutorial or judicial authorities demonstrably lacked the requisite will to use the legal means at their disposal to react to allegations or other relevant information indicative of ill-treatment. The investigations concerned were suspended indefinitely or dismissed, and the law enforcement officials implicated in illtreatment managed to avoid criminal responsibility altogether. In other words, the response to compelling evidence of serious misconduct had amounted to an “investigation” unworthy of the name. 36. In addition to the above-mentioned criteria for an effective investigation, there should be a sufficient element of public scrutiny of the investigation or its results, to secure accountability in practice as well as in theory. The degree of scrutiny required may well vary from case to case. In particularly serious cases, a public inquiry might be appropriate. In all cases, the victim (or, as the case may be, the victim’s next-of-kin) must be involved in the procedure to the extent necessary to safeguard his or her legitimate interests. 37. Disciplinary proceedings provide an additional type of redress against ill-treatment, and may take place in parallel to criminal proceedings. Disciplinary culpability of the officials concerned should be systematically examined, irrespective of whether the misconduct in question is found to constitute a criminal offence. The CPT has recommended a number of procedural safeguards to be followed in this context; for example, adjudication panels for police disciplinary proceedings should include at least one independent member. 38. Inquiries into possible disciplinary offences by public officials may be performed by a separate internal investigations department within the structures of the agencies concerned. Nevertheless, the CPT strongly encourages the creation of a fully-fledged independent investigation body. Such a body should have the power to direct that disciplinary proceedings be instigated. Effective investigation of ill-treatment – Guidelines ► Page 78