This field report was assigned the following topical and geographical subject headings by the RFE/RL: Czechoslovakia; Exile -- Broadcast' s Audibility; Prisons and Camps -- Bohemia; Prisons and Camps -- Treating of Prisoners; Prisons and Camps -- Location; Police and Security -- Arrests; Industry -- Artisans Collectivization; Industry -- Power; Exile -- RFE; Prisons and