The CBSA maintains a robust and comprehensive Intelligence program, which is mandated to provide timely, accurate and relevant intelligence support to operational decision makers at all levels within the Agency. Information is lawfully collected from a variety of sources, including open and closed source materials, domestic and international intelligence partners, joint operations with other law enforcement agencies, sophisticated technical means, covert surveillance, and informants/human intelligence. Intelligence officers and analysts are deployed within Canada—along the borders and throughout the country—as well as overseas.