27After section 6 there shall be inserted the following section—
Where any offence under this Act has been committed by some person belonging to a sea-fishing boat, the master of such boat shall in every case be liable to be deemed guilty of such offence:
Provided that it shall be a defence for the master to prove that he issued proper orders for the observance, and used due diligence to enforce the observance, of the provision of the Act or byelaw contravened and that the offence in question was actually committed by some other person without his connivance.”