18Provisions as to Government publications
Without prejudice to any rights or privileges of the Crown, where any work has, whether before or after the commencement of this Act, been prepared or published by or under the direction or control of His Majesty or any Government department, the copyright in the work shall, subject to any agreement with the author, belong to His Majesty, and in such case shall continue for a period of fifty years from the date of the first publication of the work.