Under the Posse Comitatus Act, what is the primary use of MWDs?

• A. Detection
• B. Border patrol
• C. Ceremonial duties
• D. Public relations

Answer: (A)

The main idea here is how the Posse Comitatus Act shapes what military assets do domestically. Military Working Dogs are trained for detection—sniffing out explosives, narcotics, contraband, or other threats during security sweeps and base protection. This detection capability is a non-policing support role that aligns with how the military operates at home, under civilian authority, rather than performing civilian law enforcement tasks. Ceremonial duties and public relations aren’t about identifying threats or securing areas, and border patrol veers into enforcing civil law, which the Act limits for the military. So detection is the best description of their primary use in this context.