Md. Code Ann., Fam. Law § 5-708

Any person who makes or participates in making a report of abuse or neglect under § 5–704, § 5–705, or § 5–705.1 of this subtitle or a report of substantial risk of sexual abuse under § 5–704.1 of this subtitle or participates in an investigation or a resulting judicial proceeding shall have the immunity described under § 5–620 of the Courts and Judicial Proceedings Article from civil liability or criminal penalty.