No crime in the 1950s? Don't tell Joe Friday that! Here's radio's top cop taking on all the vice the postwar decade had to offer in 20 true-life police procedurals starring Jack Webb as Sgt. Joe Friday and Ben Alexander as Det. Frank Smith!

Whether radio's most earnest cops were on robbery detail or working missing persons, narcotics, or homicide, each story was told in a straightforward manner that never questioned the intelligence of its audience.