(b)allows any other person to have possession of any official document issued for his use alone, or communicates any secret official code or pass word so issued, for, without lawful authority or excuse, has in his possession any official document or secret official code or password issued for the use of some person other than himself, or, on obtaining possession of any official document by finding or otherwise, wilfully fails to restore it to the person or authority by whom or for whose use it was issued, or to a police officer; or