 In that town, the original Victorian police station - complete with huge wooden hooks in the walls for the sergeants' horses' saddles - had only been replaced by a new police station four years earlier, in 1974.Hence, it was available, with all its trappings, for the production company.Two of the novels were adapted for BBC Radio 4, "Bump in the Night" (1971) and "Charity Ends at Home" (1992).