Detective Comics (1937-) #121

�COMMISSIONER GORDON WALKS A BEAT!� Batman and Robin are summoned to the GCPD headquarters where they learn that Commissioner Gordon has been replaced by orders of the mayor. Gordon has been demoted to a beat cop and Batman's deputy status is also revoked without explanation! Plus, Slam Bradley in �THE CASE WITHOUT A KEY!� And Air Wave is hot on the trail of gangster Dink Dillman in �HAPPY JAIL-DAY TO YOU!�