Md. Code Ann., Cts. & Jud. Proc. § 5-612
The police officers and other officers, agents, and employees of any county or municipal corporation, when acting under the authority of § 2-105 of the Criminal Procedure Article or other lawful authority, beyond the territorial limits of the county or municipal corporation within the State shall have all the immunities from liability enjoyed by them while performing their respective duties within the territorial limits of the county or municipal corporation.
Added as Courts and Judicial Proceedings § 5-328 by Acts 1990, c. 546, § 3. Renumbered as Courts and Judicial Proceedings § 5-612 by Acts 1997, c. 14, § 9, eff. April 8, 1997. Amended by Acts 2001, c. 35, § 1, eff. Oct. 1, 2001.