A Title 10 (Active Duty) infantry company can be ordered to establish traffic checkpoints at a Presidential Inauguration. True or False?

• A. True
• B. False - The Posse Comitatus Act prohibits such
• C. False because it is allowed
• D. Not governed by law

Answer: (B)

The key idea is that the Posse Comitatus Act restricts federal military personnel from performing civilian law enforcement duties. Setting up traffic checkpoints is a police function, not a military one. At a Presidential Inauguration, security is handled by civilian authorities (for example, the Secret Service) with military support only in non-enforcement roles. A Title 10 infantry company cannot be ordered to establish traffic checkpoints under normal circumstances because that would involve enforcing civil law. Only with specific authorization under laws like the Insurrection Act (or similar statutory provisions) could federal troops take on such tasks. The National Guard can perform traffic control under state authority or under Title 32, but not as Title 10 regular federal troops. So the statement is false.