A-07 / Legal boundary
Treat military support as general civilian law-enforcement authority
The Posse Comitatus Act and 10 U.S.C. §275 limit military execution of civilian laws and direct participation in searches, seizures, arrests and similar activity.
Scope and exceptions
Express constitutional/statutory exceptions and specific investigative authorities require separate analysis. This is not a claim that DoD has no criminal-investigation, protective or counterintelligence authority.
Planning implication
Where an economic/security objective calls for civilian enforcement, map the proper DoJ/FBI/DHS or other partner and the lawful support mechanism.