No member of the legislature shall hold any other public office under the State, nor shall the member, during the term for which the member is elected or appointed, be elected or appointed to any public office or employment which shall have been created, or the emoluments whereof shall have been increased, by legislative act during such term. The term "public offices," for the purposes of this section, shall not include notaries public, reserve police officers or officers of emergency organizations for civilian defense or disaster relief. The legislature may prescribe further disqualifications.