Md. Const. Decl. of Rts. art. 33

That the independency and uprightness of Judges are essential to the impartial administration of Justice, and a great security to the rights and liberties of the People: Wherefore, the Judges shall not be removed, except in the manner, and for the causes provided in this Constitution. No Judge shall hold any other office, civil or military, or political trust, or employment of any kind, whatsoever, under the Constitution or Laws of this State, or of the United States, or any of them; except that a Judge may be a member of a reserve component of the armed forces of the United States or a member of the militia of the United States or this State; or receive fees, or perquisites of any kind, for the discharge of his official duties.