At that point, the officer fired the ARWEN twice, hitting the suspect, but he was “undeterred,” the report said.

“The Complainant turned and started to run back toward his backyard,” the SIU said. “A third ARWEN round was fired from about two to four metres. The complainant still had possession of the knife.”

Police chased him to the deck in the rear of the residence, pushing him into a sliding door, with the knife still in his hand.

“At close range, (police) fired the ARWEN a fourth time at the complainant, after which the complainant threw the knife away,” the report said.

At that point, he was handcuffed on the ground and taken into custody. He was taken to hospital to be checked out, then to jail.

In his decision, SIU director Joseph Martino said the use of force in this case was reasonable.

“By the time of the ARWEN discharges in question, the police were aware of the complainant’s threatening behaviour with a knife toward his neighbours,” Martino wrote. “They had also learned that the complainant was wanted on outstanding warrants for violent offences. He was clearly subject to arrest.”

Police had done everything they could to end the standoff peacefully, he said, even trying to contact the man’s psychiatrist.

“Regrettably, when the complainant exited his home and advanced on the officers with a knife in hand, he left them little choice but to respond with a measure of force,” Martino said.

“This was not the case of lethal force being brought to bear against a fleeing felon. Rather, it was an attempt to use less lethal force to disarm an individual of a dangerous weapon as he attempted to escape police apprehension. In my view, it fell within the latitude of legally permissible force in the circumstances.”

Read the full report here.