The 150-Year-Old Law that Governs Military's Role in Local Law Enforcement

Federal agents stage at MacArthur Park in Los Angeles.

The Posse Comitatus Act is a nearly 150-year-old federal law that limits the U.S. military’s role in enforcing domestic laws. At its core, experts say the law reflects America’s long-standing belief that law enforcement should remain in civilian hands, separate from military power. President Donald Trump has tested the law’s limits in the first few […]