Right. There are ten offences with mandatory minimum sentences of four years. I have those offences here. They are: causing death by criminal negligence, section 220; manslaughter, section 236—and the mandatory minimum provisions are contained within those code sections; attempt to commit murder, section 239; causing bodily harm with intent, firearms, section 244, so that entire section is a firearms-related section; sexual assault with a weapon, section 272; aggravated sexual assault, section 273; kidnapping, section 279; hostage taking, section 279.1; robbery, section 344; and extortion, section 346.
On November 22nd, 2006. See this statement in context.