Report of the HRD on the activities of the National Preventive Mechanism in Poland in 2011 The figure below shows what places were visited by the National Preventive Mechanism in 2011, by structure of establishments, and what share (in %) a given type of establishment constituted in the total number of visited establishments. Figure 1. Nursing homes 2% Sobering stations 6% Police emergency centres for children 11% Detention centres of Military Police 5% Prisons 14% Pre-trial detention centres 5% Juvenile shelters 2% Juvenile detention centres 2% Juvenile detention centres and juvenile centres (operating together) 2% Police detention rooms 30% 26 Youth care centres 13% Youth sociotherapy centres 8%