Los Angeles County Deputy Sheriff Ronald H. Keller was arrested on cocaine charges while on duty at the Hall of Justice Jail Saturday night, the Sheriff's Department announced Monday.
A spokesman said Keller, 45, of Cerritos, a deputy since 1983, was arrested after supervisors observed him apparently under the influence of a drug. Keller had a small amount of cocaine on him at the time of his arrest, and paraphernalia was later found in his locker, investigators said.
