Joint Narcotics Special Interdiction Office

The Joint Narcotics Special Interdiction Office (JNSIO; French: Bureau commun spécial de l'interdiction des narcotiques, BCSIN) is a law enforcement agency of the Canadian federal government subordinate to Public Security Canada. Its primary responsibility is the disruption of the illegal narcotics trade both within the country and abroad, in cooperation with local agencies such as the Canada Border Services Agency as well as the agencies of foreign allies. It is headquartered in London, Ontario.