Tactical surveillance is a form of surveillance used by law enforcement and security personnel to monitor people or situations in real-time. It involves the use of specialized cameras, binoculars, night vision equipment, drones, and other technological tools that allow for the detection and tracking of individuals or groups from a distance. Tactical surveillance can be used in various scenarios such as crowd control, gathering intelligence on criminal activities and monitoring public areas for safety concerns. Additionally, it can also be used to provide support during active investigations or operations involving dangerous suspects. Ultimately tactical surveillance provides an effective way to gather information while maintaining a safe distance between officers and potential threats.