(a) Except as provided in subsection (b) of this section, a custodian shall deny inspection of the part of a public record that identifies or contains personal information about a person, including a commercial entity, that maintains an alarm or security system.
(b) A custodian shall allow inspection by:
(1) the person in interest;
(2) an alarm or security system company if the company can document that it currently provides alarm or security services to the person in interest;
(3) law enforcement personnel; and
(4) emergency services personnel, including:
(i) a career firefighter;
(ii) an emergency medical services provider, as defined in § 13–516 of the Education Article;
(iii) a rescue squad employee; and
(iv) a volunteer firefighter, a rescue squad member, or an advanced life support unit member.