10 ΙΙ II. − SPECIAL REPORT 2016 1. – INSPECTION OF DETENTION FACILITIES In 2016, the National Preventive Mechanism carried out visits/on–site inspections at: ρρ 6 Detention Facilities, and specifically: Larissa, Trikala, Domokos, Tripoli, Detention Facility for Juveniles of Corinth and Women’s Detention Facility of Korydallos. ρρ 4 Police Headquarters cells (Samos, Chios, Lesvos and Kos) and 3 police station cells (Omonoia, Patissia and Amaroussion/Attica). ρρ 3 Pre-removal Centres (Tavros/P. Ralli St., Corinth and Moria/Lesvos) (7 visits). ρρ 4 Registration and Identification Centres (Lesvos, Chios, Kos and Samos) (16 visits). ρρ Follow-up visits to inspections made the previous year to the Psychiatric Hospital of Athens (Dafni) and the Lechaina Branch for Persons with Disabilities of the Social Welfare Centre of the Region of Western Greece. Prisons All the NPM’s visits were carried out without previously notifying the prisons and its access was absolutely unhindered. A common finding is that the possibilities for release from prison provided by Law 4322/2015 “Reforms of penal provisions, abolishment of type C detention facilities and other provisions” significantly decreased prison populations, improving detention conditions. However, the problems posed by the age and unsuitability of the building infrastructures remain, with the most egregious example being the Tripoli Detention Facility. Prisoner overcrowding continues to be a matter of crucial importance to the Ombudsman as does the effect it has on their living conditions. “Fewer detainees, less incarceration time, special attention to special cases, implementation of alternative detention measures” are unvarying objectives. More generally, the penitentiary issue must be evaluated in the light of the overall operation of the penal system with its separate aspects, i.e. legislative, judicial and correctional, in