The objective of this report was to determine whether DoD should issue policy governing the deputation of DoD law enforcement personnel by State and local governments. The evaluation focused on the following sub-objectives; to determine the propriety of using deputized authority in view of statutory and regulatory constraints, if any, to determine whether the ability of DoD law enforcement organizations to perform essential law enforcement functions within their Federal jurisdiction is significantly hampered by a lack of authority to enforce State and local laws, to determine if the DoD law enforcement mission can be met fully and effectively with DoD assets and the assistance of State and local law enforcement agencies as necessary, where deputation exists, to determine if internal safeguards and management controls ensure the proper exercise of the deputized authority; and, to determine if the benefits that flow from DoD law enforcement agencies utilizing State or local law enforcement authority exceed the liabilities that attach to exercising such authority.