In a three-agent foot surveillance technique for tracking, which method is used?

• A. Detections Chain
• B. Surveillance Triangle
• C. ABC Method
• D. Triple-Agent Plan

Answer: (C)

In three-agent foot surveillance, the goal is to keep constant, coordinated coverage of a moving subject by assigning clear roles and maintaining overlapping observation. The ABC Method fits this approach because it formalizes how three agents work together: each agent has a distinct function that complements the others, ensuring continuous contact, redundancy, and rapid adjustment to the subject’s movements. With this method, one agent stays closest and maintains the primary sightline, another provides support and blocks potential exits or directions the subject might take, and the third offers a broad view from a different angle to catch anything the others miss. The result is smoother tracking, less risk of losing the subject, and less chance of exposure or alerting the subject, since movements are coordinated and cover multiple perspectives at once.

That’s why the ABC Method is the best choice here: its structure gives the team a reliable, role-based framework for triad surveillance, balancing proximity, concealment, and coverage. The other options describe formations or concepts that don’t specify the same formal, role-driven coordination among three agents, which is essential for maintaining continuous tracking in foot surveillance.