New York State Approved Security Guard Training Facility, providing security guard classes on Long Island. The first on Long Island to include Private Investigator Development, Conceal Carry Courses, and Active Shooter Training. Security Guard Training at GST includes all of the NYS required courses to become an unarmed or armed security guard: 8 Hour Pre Assignment, 16 Hour On The Job, 8 Hour Annual In Service, 47 Hour Firearms, and 8 Hour Annual Firearms Courses. GST is a veteran-owned facility, providing assistance for US veterans in navigating the requirements for a new career in security or private investigations.