What directive gives Department of Defense police arrest authority?

The directive that grants Department of Defense (DoD) police arrest authority is DoD Directive 5525.4, which outlines the authority and responsibilities of DoD law enforcement personnel. This directive enables military and civilian law enforcement officers to enforce laws and regulations on DoD property and to make arrests for offenses committed within their jurisdiction. Additionally, the Uniform Code of Military Justice (UCMJ) provides a legal framework for military police to exercise their authority in specific circumstances.