Maryland Business Occupations and Professions Section 13-301

      (a)      Except as otherwise provided in this title, a person shall be licensed by the Secretary as a private detective agency before the person may:

            (1)      conduct a business that provides private detective services in the State; and

            (2)      solicit to engage in a business that provides private detective services in the State.

      (b)      An individual or a firm may qualify for a license as a private detective agency.