The start of a coroner's inquest into the police shooting of Fredy Villanueva has rekindled questions about who polices the police in Quebec.

Critics say Quebec's system of cops investigating each other must be scrapped because officers usually can't be objective, and a CTV investigation shows that such probes rarely lead to criminal charges.

Brian Daly has a special report at noon and 6 p.m. Monday on CTV News.