1. The police officer is not bound to entertain your application for production of document. yes you can seek your grivance to higher official of police to investigate your aspect also.
2. Before submission of charge sheet and before commencement of trial, you have no locus standi i.e. you are not entitled to make any application in such case.
3. Police officer can require production of documents only by written order. -Under section 91, C r.P.C ., a police officer cannot demand the production of books in any manner that he likes. The word "may" in the section merely means that if a police officer makes up his mind to issue an order to the person concerned, he must do it in writing.
4. The discretion conferred on the court is an absolute discretion, the only condition for the exercise of the discretion being that in the opinion of the court the production of the document should be necessary or desirable for the purposes of the enquiry, trial or other proceeding before the court. see 1962 (2) C r LJ 610.