“ Every person to whose knowledge it comes that a prohibited publication is in his possession, power or control shall forthwith deliver every such publication into the custody of the police, and, if he fails to do so, he shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $1,000 or to imprisonment for a term not exceeding one year or to both. ”

“ No person shall be convicted of any offence referred to in section 4 (1) (c) or (d) if such person proves that the publication in respect of which he is charged was printed, published, sold, offered for sale, distributed, reproduced or imported (as the case may be) 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 reason to believe that the publication had a seditious tendency. ”

“ Any police officer may arrest without warrant any person found committing or reasonably suspected of committing or of having committed or of attempting to commit or of procuring or abetting any person to commit any offence under this Act or reasonably suspected of the unlawful possession of any thing liable to forfeiture thereunder. ”