An RCMP officer involved in a deadly 2014 shooting is suing B.C.'s police watchdog for negligence, saying its three-year investigation — which ultimately cleared his name — took far too long and intensified his post-traumatic stress.

Cpl. Brian Burke claims he hasn't been able to work for more than a year, even since the Independent Investigations Office of B.C.'s inquiry came out in his favour last March.