District of Columbia Code Division I. Government of District. § 5-303. Public information program; priority at the scene.

(a) The Chief of Police shall establish a continuing public information program to inform the public, at a minimum, of which police agencies located in the District of Columbia have authority to make arrests anywhere in the District.

(b) Any cooperative agreement with a federal law enforcement agency shall include procedures that establish clearly which agency has priority at the scene. In addition, before entering into a cooperative agreement, the Chief of Police shall make a finding as to: