The cops of the radio era are on the beat in three old time radio procedural dramas. First, Dan Duryea is the intense, two-fisted Lt. Lou Dana in "The Donald Shelberger Case" from The Man from Homicide (originally aired on ABC on July 9, 1951). Then, we'll hear an Armed Forces Radio Service rebroadcast of The Line-Up known as "Gas Station Robberies" starring Bill Johnstone and Wally Maher. Finally, Larry Thor is Detective Danny Clover in "The Dion Hartley Murder Case" from Broadway is My Beat (originally aired on CBS on February 17, 1950).