Report of the Commissioner for Human Rights on the activities of the National Mechanism for the Prevention of Torture in Poland in 2017 Part II Situation in places of detention Prisons and pre-trial de tention centres “No one truly knows a nation until one has been inside its jails. A nation should not be judged by how it treats its highest citizens but its lowest ones”. Nelson Mandela In 2017 a total of 5 penitentiary establishments were visited, including 2 prisons, 2 pre-trial detention centres and 1 field unit. 18. In three cases the establishments were re-inspected19. 18 Pre-trial detention centre in Grójec KMP.571.4.2017, Wałbrzych BPW.571.1.2017, prison in Herby BPK.571.1.2017, Malbork BPG.571.1.2017, field unit of the pre-trial detention centre in Radom KMP.571.3.2017 19 Pre-trail detention centre in Grójec, Wałbrzych, field unit of the pre-trial detention centre in Radom. 15