Production 11 aka Sixteen Jewel Thieves

A jewel thief's crime spree grips Los Angeles—16 burglaries in 16 days. As the city’s elite lose priceless treasures, Sergeant Joe Friday and Ben Romero race against time to catch the elusive mastermind. The case takes the detectives through the underbelly of the city, leading to a final confrontation with a cunning criminal who hides his loot in the most unexpected places. Originally aired: August 18, 1949. Cast: Jack Webb, Barton Yarborough, Raymond Burr, Virginia Gregg, Harry Bartell