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Army Tactics, Techniques, and Procedures (ATTP) 3-39.10, "Law and Order Operations," is aligned with Field Manual (FM) 3-39 and the Military Police Corps Regiment's keystone operational doctrine. It provides guidance for commanders and staffs on military police law and order (L&O) operations. L&O operations support all elements of full spectrum operations (offensive, defensive, and stability or civil support operations). This manual emphasizes policing capabilities necessary to establish order and subsequent law enforcement (LE) operations that enable successful establishment, maintenance, or restoration of the rule of law. While this manual focuses on the L&O function and its associated tasks and principles, it also emphasizes the foundational role that L&O operations and policing, in general, play in the military police approach to missions and support to commanders. The L&O function is the lead function of military police, shaping the approach of military police and providing the foundation on which the other military police functions are conducted. ATTP 3-39.10 is written for Army military police personnel conducting L&O operations while assigned to military police brigades, battalions, companies, detachments, U.S. Army Criminal Investigations Command (USACIDC) elements, military police platoons organic to brigade combat teams (BCTs), and provost marshal (PM) staffs. It applies to military police commanders, staff, functional cells, and multifunctional commanders and staff elements at all echelons tasked with planning and directing policing and LE operations. This manual describes military police L&O operations executed across the full spectrum of Army operations and operational environments (OEs), with specific emphasis on police station operations and associated LE patrol activities. The manual is focused on establishing the framework of L&O as the foundational function of military police and describing L&O support to full spectrum operations. Additionally, th