A former Toronto police officer, who lost his job after he was convicted and jailed for assaulting a civilian, has been sentenced to three years in prison for sexually assaulting a security company co-worker in northern Ontario.

Roy Preston was sentenced last month after a judge found him guility in December of sexually assaulting Destiny Douglas on Aug. 1, 2015 while they were both employed with Toronto-based Cancom Security. Preston was 46 at the time, Douglas 19.

Preston has filed an appeal and has been released on bail.