Abstract: A method and system for targeting and tracking an intruder within a specified volume, which may include the following steps: periodically scanning through a defined zone of coverage with a laser beam produced by at least one laser transmitter, said defined zone of coverage being within said specified volume and adjustable by motion of at least one of a swing mirror or a rotating block; collecting, with at least one laser sensor, reflections of said laser beam reflected from objects within said adjustable defined zone of coverage; applying signal processing algorithms to LADAR signals to determine a presence of an intruder; calculating, in the event of a positive determination of intruder presence, respective orientation parameters of said intruder; and, moving said swing mirror or said rotating block, thereby adjusting said defined zone of coverage, to target said at least one laser transmitter and to track said intruder.