Section 6

No person shall be convicted of any offence under paragraph 4(1)(c) or 4(1a)(c) if the person proves that the publication in respect of which he is charged was printed, published or caused to be published, sold, offered for sale, distributed or reproduced without his authority, consent and knowledge and without any want of due care or caution on his part, or that he did not know and had no reasonable ground to believe that the publication had a seditious tendency.”.