ATP 3-39.10 — Police Operations
ATP 3-39.10 governs police operations across the range of military operations and their support to Army operations.
- Publication number: ATP 3-39.10
- Title: POLICE OPERATIONS
- Date: 07/24/2026
- Proponent: T2COM
- Status: ACTIVE
View ATP 3-39.10 on armypubs.army.mil
It covers police operations planning, preparation, execution, assessment, police stations, policing strategies, law enforcement, traffic enforcement, civil security, and evidence and forensics support. It emphasizes the capabilities and activities needed to establish order, prevent crime, and establish, maintain, or restore the rule of law.
Applies to: ATP 3-39.10 applies to the Active Army, Army National Guard/Army National Guard of the United States, United States Army Reserve, and United States Department of the Army Civilian Police unless otherwise stated.
Topics covered
- Police operations planning
- Police station operations
- Crime prevention measures
- Law enforcement patrols
- Civil security and civil control
- Traffic collision investigations
- Evidence collection and forensic analysis
Questions and answers
What must commanders and staffs ensure during police operations?
Commanders, staffs, and subordinates ensure that their decisions and actions comply with applicable United States, international, andin some caseshost-nation laws and regulations. (paragraph 3-39)
What must commanders ensure about Soldiers and the law of war?
Commanders at all levels ensure that their Soldiers operate according to the law of war and the rules of engagement (see FM 6-27). (paragraph 3-39)
When must questioning stop during an interview?
During an interview of a victim, witness, or potential suspect, if a statement is made that raises a reasonable suspicion of guilt that the individual committed a crime, questioning must cease until the subject is advised of his or her rights (see Miranda v. Arizona, 1966). (paragraph 5-54)
What does the Posse Comitatus Act prohibit?
Except as expressly authorized by the Constitution of the United States or by another act of Congress, the Posse Comitatus Act prohibits the use of active Army and Air Force as enforcement officials to execute state or federal law and perform direct law enforcement functions. (paragraph 6-121)
What does continuous assessment enable military police to do?
Continuous assessment enables military police to adapt to a fluid and changing environment and evolving situational understanding. (paragraph 2-23)