And whereas Offences may be committed against this Act by Persons whose Names are unknown to the Surveyor, Assistant Surveyor, or District Surveyor; be it therefore enacted, That it shall be lawful for the Surveyor, Assistant Surveyor, or District Surveyor, or any Person acting under his Authority, and such other Person as he shall call to his Assistance, or any other Person witnessing the Commission of the Offence, without any other Authority than this Act, to seize and detain such unknown Person who shall commit any such Offence, and take him forthwith before any Justice of the Peace, who shall proceed and act with respect to such Offence according to the Provisions of this Act.