In 2016, the inspectors spent: - 161 days in detention facilities; - 153 days in hospitals; - 85 days in custody facilities; - 21 days in administrative detention centres; - 23 days in a juvenile detention centre; - 11 days in jails and cells of courts; - 2 days in customs detention centres; - 0 days on deportation procedures. I.e. a total of 456 days in places of deprivation of liberty. 4.2 Nature of the visits (since 2008) Unannounced Scheduled Custody facilities, TGI cells, customs, etc. 589 3 Juvenile detention centres Healthcare institutions 64 7 Penal institutions 111 105 118 144 Detention centres and facilities, TOTAL waiting areas, etc. 100 982 7 266 In all, 78.69% of institutions were visited unannounced and 21.31% in a scheduled manner. These percentages are to be adjusted according to the type of institution concerned. Visits conducted in an unexpected manner thus comprise the following percentages: - 99.49% with regard to police custody facilities, court cells and customs; - 93.46% with regard to detention centres for illegal immigrants, waiting areas and deportation procedures; - 90.14% with regard to juvenile detention centres; - 51.39% with regard to healthcare institutions; - 45.04% with regard to penal institutions; This distribution is fairly stable from one year to the next. It obeys the following principles: - visits to complex institutions in which persons deprived of liberty can stay over a long period of time are generally announced, unless there are grounds to conduct an unannounced visit, since this way, the CGLPL can benefit, as soon as it arrives, from a documentary case-file on the institution and a meeting with the principal managers of the institution; - - on the other hand, visits to small institutions in which persons deprived of liberty stay for only brief periods are, in principle, unannounced. 119