Maryland Public Safety Section 3-406

      (a)      Each railroad police officer has all the powers granted to a peace or police officer.

      (b)      A railroad police officer may exercise the powers granted under this subtitle only if the railroad police officer:

            (1)      is on real or personal property owned, leased, operated, or controlled by the railroad company that employs the railroad police officer;

            (2)      is in fresh pursuit of a suspect;

            (3)      is requested or authorized to act by the executive officer or chief police officer of a county; or

            (4)      is ordered to act by the Governor.