D.C. Code § 44-1505: Police to arrest law violators at request of member; evidence of membership.

Members of the Metropolitan Police force of the District of Columbia, upon application of a member of the Washington Humane Society who has viewed a violation of a law or regulation of the District for the prevention of cruelty to animals, shall arrest the offending party without a warrant, and take him before the Superior Court of the District of Columbia for trial. Proper evidence of membership to a police officer shall be the exhibition of a badge or certificate of membership in the Society.