10. Information concerning existence of certain information---Where a
 request under this Act relates to information to which section 6 or
 section 7 or [section 9 (2) (b)] of this Act applies, or would, if it
 existed, apply, the Department or Minister of the Crown or organisation
 dealing with the request may, if it or he is satisfied that the interest
 protected by section 6 or section 7 or [section 9 (2) (b)] of this Act
 would be likely to be prejudiced by the disclosure of the existence or
 non-existence of such information, give notice in writing to the
 applicant that it or he neither confirms nor denies the existence or
 non-existence of that information.

       The expressions in square brackets were substituted for the former
     expressions by s. 4 (2) of the Official Information Amendment Act
     1987.