“Calling Squad Cars!”
by L. Ron Hubbard
Publication date: April 1934
Original publication: The Phantom Detective
Genre: Mystery & Suspense
Story description: A police dispatcher is jailed for allegedly helping a vicious gang of criminals. After making bail, he comes up with a daring plan involving the use of stolen radio equipment in an effort to vindicate himself.
Currently available as part of the Stories from the Golden Age series, in the title Mouthpiece.