This field report was assigned the following topical and geographical subject headings by the RFE/RL: Czechoslovakia; Prisons and camps (2500) -- Treatment Of Prisoners; Prisons and camps (2500) -- Conditions; Prisons and camps (2500) -- Mirov; Prisons and camps (2500) -- Security Measures; Prisons and camps (2500) -- Atrocities; Prisons and camps (2500) -- Personnel and