And be it further enacted, That it shall and may be lawful to and for the Returning Officer or Officers, or his or their Deputy or Deputies, at any Election, and he and they is and are hereby authorized and empowered to commit all Persons to Gaol, without Bail or Mainprize, who shall plead or speak on any Matter or Thing contrary to the Provisions of this Act, or who shall be found rioting or interrupting the Poll, or wilfully preventing the Approach of Electors to the Place of polling, or who snail be guilty of a Contempt to such Returning Officer or Officers, or to such Deputy or Deputies; provided that the Time of such Imprisonment shall not in any Case exceed Twenty-four Hours.