s 19 Diary of proceedings in investigation
19.—(1) A police officer conducting any investigation under this Part must keep a daily diary of his or her progress, setting out —(a) the time at which any order for investigation reached him or her; (b) the times at which he or she began and closed his or her investigation; (c) the places he or she visited; and (d) the findings of his or her investigation. (2) Despite anything in the Evidence Act 1893, an accused is not entitled to call for or inspect such a diary before or during an inquiry, a trial or other proceeding under this Code. (3) Where, for the purposes of section 161 or 162 of the Evidence Act 1893, the police officer conducting the investigation refers to such a diary, then —(a) the accused may be shown only the entries in the diary that the officer or prosecutor has referred to; and (b) the prosecutor must conceal or obliterate any other entries.