Md. Code, Criminal Procedure § 2–208.3

(a) In this section, “Prince George’s County fire and explosive investigator” means an individual who:

(1) is assigned full time to the Fire and Explosive Investigations Section of the Prince George’s County Fire/EMS Department;

(2) has attained the position of deputy fire marshal; and

(3) has successfully completed a training program from a police training school approved by the Maryland Police Training and Standards Commission established under Title 3, Subtitle 2 of the Public Safety Article.

(b) Except as provided in subsection (c) of this section, a Prince George’s County fire and explosive investigator has the same authority granted to the State Fire Marshal or a full–time investigative and inspection assistant of the Office of the State Fire Marshal under § 2–208 of this subtitle:

(1) while operating in Prince George’s County; and

(2) while operating outside Prince George’s County when:

(i) the Prince George’s County fire and explosive investigator is participating in a joint investigation with officials from another state, federal, or local law enforcement unit, at least one of which has local jurisdiction;

(ii) the Prince George’s County fire and explosive investigator is rendering assistance to another law enforcement officer;

(iii) the Prince George’s County fire and explosive investigator is acting at the request of a law enforcement officer or State law enforcement officer; or

(iv) an emergency exists.

(c) The Prince George’s County Fire Chief:

(1) may limit the authority of a Prince George’s County fire and explosive investigator under this section; and

(2) shall express the limitation in a written policy.