§51-24A.20.

§51-24A.20.
   
   Access to records which, under the Oklahoma Open Records Act, would
   otherwise be available for public inspection and copying, shall not be
   denied because a public body or public official is using or has taken
   possession of such records for investigatory purposes or has placed
   the records in a litigation or investigation file. However, a law
   enforcement agency may deny access to a copy of such a record in an
   investigative file if the record or a true and complete copy thereof
   is available for public inspection and copying at another public body.