Non-grandfathered automatic weapons have been illegal in Canada since 1978. No hard proof exists that legally registered automatic firearms have been used in violent crime in Canada. In 1991 and 1992, the Canadian Centre for Justice Statistics reported that 6 and 12 homicides, respectively, involved automatic firearms; however, whether they were previously registered in Canada, or even legitimate "full-auto's" is not known.
Nonetheless, firearm prohibitionists maintain that automatic weapons have been banned and are now rarely, if ever, used in crime. It is true that their generally large size, greater cost, technical complexity, voracious appetite for ammunition, and difficulty in aiming them accurately ultimately discourage extensive criminal use. These factors may well have far more effect on criminal choice of firearms than gun control laws.