DENVER — The discovery that a Cleveland officer who shot and killed a 12-year-old boy last month had washed out at another police force highlights what some experts call an unnerving truth about policing: Departments don't always dig deeply enough into recruits' pasts.
Cleveland police officials didn't learn until after the Nov. 22 shooting that Officer Timothy Loehmann's former supervisors at a suburban department noted in his personnel file his "dismal" handgun performance and emotional immaturity. The file shows a deputy chief recommended firing him, but he resigned first.
The Cleveland department has since changed its hiring policy to require reviews of publicly available personnel files.
Authorities say Loehmann believed Tamir Rice, who was playing with a pellet gun, had a real firearm. Loehmann is white and the youngster was black. The shooting added fuel to a nationwide debate about police use of force against blacks in such places as New York City and Ferguson, Missouri.
The Cleveland case "underscores the need for better vetting," said John DeCarlo, a professor at the John Jay College of Criminal Justice in New York who has studied hiring practices. "We have to be more aware of red flags."
Police departments typically do a criminal background check and administer a psychological or personality exam, but there are no national standards for screening applicants, he said.
As a result, some departments dig through prior employment files and some don't, relying instead on interviews with former supervisors or co-workers who are not always forthcoming or honest, and with the candidate's family and neighbors.
In some cities, such as Denver, retired police and firefighters do those interviews.