The F.B.I. review group made its decision about the Baltimore case in November 2014. In February of that year, the group also termed an episode in which an off-duty agent in Queens, N.Y., shot and wounded a car burglar outside his house a “bad shoot,” as documents disclosed by the F.B.I. in August 2015 previously revealed.

Those two “bad shoot” findings ended a years-long pattern in which the F.B.I. had deemed proper every intentional shooting by its agents, according to thousands of pages of bureau records obtained in Freedom of Information Act litigation.

Before the Baltimore incident, the last time the F.B.I. tried to discipline an agent for intentionally firing a gun was 2003, after an off-duty agent fired a warning shot during an altercation with day laborers outside a Home Depot in Los Angeles. Before the Queens shooting, it is not clear when, if ever, the F.B.I. tried to discipline an agent for intentionally shooting someone; there are no records of any such episode in the documents obtained through the litigation, which date to 1993.

The disclosure of the two recent “bad shoot” findings comes at a time of heightened national scrutiny of shootings by law enforcement officials. Mr. Harrison was black, as is Adrian Ricketts, the victim of the shooting in Queens who later admitted to investigators that he had helped burglarize the agent’s Lexus before the agent shot him from the second-story window of his house. Mr. Ricketts and that agent, Navin Kalicharan, agreed not to testify against each other, and neither was charged.

The F.B.I. declined to comment on the shooting reviews.

A month after his death, the Baltimore Sun reported that a police report identified Mr. Harrison as a member of the Black Guerrilla Family gang and that he had been arrested many times. He was unarmed when he was shot, but the F.B.I. documents said Mr. Harrison had more than $1,800 and two bags of heroin in his possession at the time of the shooting. His killing attracted relatively little attention, in contrast with the widespread protests, rioting and arson that followed the death last spring of Freddie Gray while he was in police custody in Baltimore.