Annual Report 2014 of the National Preventive Mechanism for the person in question and the organisational difficulties for the personnel of the Security Corps and Forces responsible for moving them, other than in events in which the procedural safeguards render their physical presence necessary. 220. The measures necessary should be adopted for inmates to have sufficient belongings with them during transfers in accordance with the estimated duration of the transfer and, if appropriate, until their return to the CP of origin, and for them to access to them and to their toiletry as convenient. 221. The ongoing transfers of an inmate from one CP to another may have noxious effects on his physical and mental welfare, and hinder contacts with their family relatives and lawyer, so that they are to be avoided other than where strictly necessary. 222. The geographical location of most CP, in areas far from town and city centres, hinders their access by persons visiting them mainly to communicate with the inmates, In this regard, access to CP by public transport should be enabled. 223. Although the overall state of repair and maintenance of most of the centres visited could be considered acceptable, the state of the facilities of many CP, particularly the older ones, should be improved for example, as regards paintwork, repair of defects, damp, heating and/or air conditioning according to the climate of the area, roofing of part of the yards to permit their use in poor weather conditions, fitting of separations or other items for the preservation of privacy in common showers, etc. 224. The area and furniture of the cells are generally insufficient to meet the needs of the inmates occupying them. Taking into account that most inmates must share cells, at many CP the criterion explained in the second General Report of the CPT (1991, paragraph 43) is breached. Said criterion considered the size of approximately 7 m² to be desirable for single rooms, with at least 2 metres between walls, and not less than 2.5 metres from floor to ceiling. Based on this information and other statements of the CPT, a general proportion of 5 meters per person for spaces to be occupied by groups has been suggested as acceptable. Cell at the CP of Badajoz 84