Any police officer who enters or causes to be entered in the daily diary a report which he knows, or has reason to believe, to be untrue, whether he has or has not been directed to make such entry by a superior officer, shall ordinarily be dismissed from service. A copy of this rule and also a copy of the following certificate shall be affixed to the cover of the daily diary in every police station or post and in lines. ‘‘Certified that this register contains - leaves in duplicate. No page should be re- moved from it. Wrong entries, if any, should be scored out by means of single line and initialed by a Senior Police Officer, in no case should any such entry be mutilated or rendered illegible nor should paper be pasted over it.’’