Maryland Code, Estates and Trusts § 13-710

(a) Any person filing a petition, participating in the making of a good-faith report, or participating in an investigation or in a judicial proceeding resulting therefrom, pursuant to § 13-705 or § 13-709 of this subtitle or Title 14, Subtitle 3 of the Family Law Article, shall have the immunity from civil liability or criminal penalty described under § 5-618(a) of the Courts and Judicial Proceedings Article.

(b) A law enforcement officer who transports an adult to an appropriate medical facility under § 13-709 of this subtitle shall have the immunity from civil or criminal liability described under § 5-618(b) of the Courts and Judicial Proceedings Article.