A police firearms officer has been arrested over the fatal shooting of Jermaine Baker in north London last week, the police watchdog has said.
Baker, 28, from Tottenham, died from a single gunshot wound during a police operation near Wood Green Crown Court on Friday.
The Independent Police Complaints Commission (IPCC) told a meeting - held to ease tensions in the area - that the Metropolitan Police officer had been arrested and interviewed under caution as part of its "homicide" investigation.
"There was evidence to indicate that a potential criminal offence may have been committed by the officer in his use of lethal force," IPCC commissioner Cindy Butts told the meeting.
Ms Butts also disclosed that Baker was in a black Audi when he was shot and a "non-police issue firearm" was also found inside.
During the noisy and heated meeting, an unidentified woman can be heard shouting: "Who killed my son?"
Local MP David Lammy, community leaders and police representatives were also present at the meeting, attended by up to 150 people.