Federal building security refers to the protection of federal government properties within Canadian communities, typically provided by the RCMP, Commissionaires, or specialized federal protective services rather than municipal police. While municipal police respond to emergencies at federal buildings and enforce Criminal Code matters, day-to-day security operations remain federal responsibility. This arrangement recognizes federal jurisdiction over its own properties and the specialized nature of protecting government facilities. Security levels vary based on building sensitivity—passport offices have different requirements than defence installations. Municipalities must coordinate with federal security services on emergency response protocols, though they bear some costs when providing police, fire, or ambulance services to federal properties. The security division of responsibilities sometimes creates jurisdictional questions during incidents at or near federal buildings.