- 23 In this respect, the electronic (i.e. audio and/or video) recording of police interviews represents an important additional safeguard against ill-treatment of detainees. This is in the interest both of persons who have been ill-treated by the police and of police officers confronted with unfounded allegations that they have engaged in physical ill-treatment or psychological pressure. Electronic recording of police interviews also reduces the opportunity for defendants to later falsely deny that they have made certain statements. The CPT recommends that the Greek authorities draw up a code of conduct for interrogations and take steps to introduce electronic recording of police interviews, taking into consideration the above remarks. In parallel, specific training in advanced, recognised and acceptable interviewing techniques should be regularly provided to the police officers concerned. A system of ongoing monitoring of police interviewing standards and procedures should also be implemented in order to facilitate the investigation of any allegations of ill-treatment. Further, professional training for police operational officers and investigators should place particular emphasis on a physical evidence-based approach, thereby reducing reliance on information and confessions obtained through questioning for the purpose of securing convictions. f. custody records 34. The findings of the delegation in 2013 mirror those of previous visits. The information kept in the existing registers tended to be superficial and, frequently, incomplete or inexact. It is for this reason that the CPT has advocated the introduction of an individualised custody record which would not only reinforce the practical application of the fundamental safeguards afforded persons in custody but also facilitate the work of the police. Such a single and comprehensive record should contain information on all relevant aspects of a detainee's custody and action taken regarding them (time of and reason(s) for the apprehension; time of arrival on police premises; when informed of rights; signs of injury, health alert issues given with the consent of the detainee etc.; contacts with and/or visits from next of kin, lawyer, doctor or consular official; when offered food; when questioned; when brought before the relevant judge, when transferred, released, etc.). For certain matters (for example, the removal of personal belongings, the fact of being informed of his/her rights and of invoking or waiving them), the detainee's signature should be obtained and, if necessary, the absence of a signature explained. The detainee's lawyer should have access to such a custody record. The CPT calls upon the Greek authorities to develop and introduce such an individualised custody record.