For almost a decade, Montreal has hosted the Canadian championship in Brazilian jiu jitsu. But organizers had to cancel this year’s tournament at the last minute after cops told them it would violate a Canadian law that says that only combat sports recognized by the International Olympic Committee are legal. The police threatened to arrest every athlete who took part in the event. Making things even more confusing, the law cops cited defines combats sports as those involving striking with the hands or feet. Brazilian jiu jitsu is a grappling sport that doesn’t allow strikes.