John Prentiss Poe, The Maryland Code. Public Local Laws, Adopted by the General Assembly of Maryland March 14, 1888. Including also the Public Local Acts of the Session of 1888 Incorporated Therein Page 522-523, Image 531-532 (Vol. 1, 1888) available at The Making of Modern Law: Primary Sources.
City of Baltimore, § 742. Whenever any person shall be arrested in the city of Baltimore, charged with any crime or misdemeanor, or for being drunk or disorderly, or for any breach of the peace, and shall be taken before any of the police justices of the peace of the said city, and any such person shall be found to have concealed about his person any pistol, dirk knife, bowie-knife, sling-shot, billy, brass, iron or any other metal knuckles, razor, or any other deadly weapon whatsoever, such person shall be subject to a fine of not less than five dollars nor more than twenty-five dollars in the discretion of the police justice of the peace before whom such person may be taken, and the confiscation of the weapon so found, which said fine shall be collected as other fines are now collected; provided, however, that the provisions of this section shall not apply to those persons who, as conservators of the peace are entitled or required to carry a pistol or other weapon as a part of their official equipment.