21st Precinct was a popular American radio drama series that aired on CBS from July 7, 1953, through November 1, 1956. Known for its realistic and gritty portrayal of police life, the show was based on true stories and sought to offer an authentic behind-the-scenes look at the daily challenges faced by police officers. The series was initially introduced as a summer replacement for 'My Friend Irma' and quickly gained popularity, thanks to its intense drama and realistic depiction of police work. "Post Number Seven" is the sixth episode of 21st Precinct, which originally aired on August 11, 1953. In this episode, Patrolman Beavan is found wounded, and an attempted suicide is initially suspected. The episode delves into the investigation surrounding Beavan's injury, revealing the complexities and dangers of police work. The story is a compelling exploration of the personal and professional challenges faced by officers of the 21st Precinct.