Chapter 8 considers aviation security policy in Canada. It begins by noting the multilayered security matrix, made up of a network of laws, regulations, policies, measures, programs and technology that serve as the guiding framework for aviation security in Canada. The importance of this multilayered security matrix emerges when one layer is breached and the others continue to serve as preventive barriers to avoid criminal attacks or interference with civil aviation. The chapter then lists all government and private entities involved in aviation security and their procedures and activities. The chapter then considers the various programs and measures that have been adopted for both passenger and cargo security. The chapter finally discusses the main trends that characterize the current evolution of aviation security: a) privacy and aviation security; b) the review of Canada’s Transportation Act; c) the regulation of drones; and d) the right to protest in Canadian airports.