44 THE GREEK OMBUDSMAN 4. Pre-Removal Detention Centres for Third Country Nationals 4.a. General annual findings The general finding emerging from the NPM's analysis is that Pre-removal Detention Centres have reached their limits and do not meet European specifications (Article 16 of the Return Directive). In some cases, conditions appear to have improved in relation to the past, as the number of detainees has decreased and, as a rule, the period of detention does not exceed six months; however, improvements are temporary and precarious as they depend on the fluctuation of migratory flows. A common problem in almost all these centres is the shortage of interpreters, psychologists and social workers. Spaces vary, ranging from mass detention dormitories or container wards to conventional detention facilities. Living conditions vary depending on the facilities, with stark differences in terms of outdoor spaces. The usual deficiencies are found in cleanliness, heating, quality and quantity of food, and the lack of personal hygiene. The provision of an outdoor space and entertainment activities, wherever they exist, are of short duration, while basic services of a physician, psychologist, social worker and interpreter are available but are often not provided because of the competition for their services. The Ombudsman has pointed out19 that it is imperative that a steady flow of funding from the regular funds of the European Fund for Asylum, Migration and Integration (AMIF) be secured for the Pre-departure Centres through the necessary timely completion of internal administrative procedures and the Central Managing Authority. In the same context, the Ombudsman noted that there is no more cynical confession of disregard of fundamental rights than the statement, in official texts, of the view that "the construction of detention structures will act as a deterrent to new migratory flows"20. 19 The Greek Ombudsman, Special Report “Migration flows and refugee protection – administrative challenges and human rights”, pp. 86-89 https://www.synigoros.gr/ resources/docs/greek_ombudsman_migrants_refugees_2017-el.pdf 20 Special Report “Migration flows and refugee protection – administrative challenges and human rights”, p. 88