There Is a Newer Version of the Maryland Code
Maryland Public Safety Section 3-413
§ 3-413.
  (a)   If sufficient facilities are available, the person in charge of a jail or place of detention shall receive and confine an individual arrested by a railroad police officer.
  (b)   An individual confined under subsection (a) of this section:
    (1)   is deemed to be in the custody of the railroad police; and
    (2)   has the same status as an individual arrested by any other peace or police officer of the State.