Shield for Murder
A crooked detective masterminds a robbery then fights to keep his money.
OK B-level noir that longed for a bigger budget. O'Brien is fine as a cruel cop who goes too far, but Agar & English are ciphers. It's always fun to see familiar character actors (Carolyn Jones as a sex-starved bar girl is fine).
But I especially like Emile Meyer as Capt of Detectives.
Nice little crime pic would make a good double feature with Bad Lieutenant. A dirty cop kills a bookie and bends over backwards trying to conceal it while the straight cop tries to out him. Pulpy fun, if somewhat inconsequential.