CrPC Section 172: Diary of proceeding in investigation
Code of Criminal Procedure, 1973 · Chapter 12: Information - the police and their powers - Investigate
Repealed on 1 July 2024 and replaced by the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS).
¶ 172. Diary of proceeding in investigation.- (1) Every police officer making an investigation under this Chapter shall day by day enter his proceeding in the investigation in a diary, setting forth the time at which the information reached him, the time at which he began and closed his investigation, the place or places visited by Mm, and a statement of the circumstances ascertained through his investigation.
¶
*[(1A) The statements of witnesses recorded during the course of investigation under section 161 shall be inserted in the case diary.
¶(1B) The diary referred to in sub-section (1) shall be a volume and duly paginated.]
¶*[sub-clauses (1A) and (1B) Inserted by Code of Criminal Procedure Amendment Act, 2008]
¶(2) Any Criminal Court may send for the police diaries of a case under inquiry or trial in such Court, and may use such diaries, not as evidence in the case, but to aid it in such inquiry or trial.
¶(3) Neither the accused nor his agents shall be entitled to call for such diaries, nor shall he or they be entitled to see them merely because they are referred to by the Court; but, if they are used by the police officer who made them to refresh his memory, or if the Court uses them for the purpose of contradicting such police officer, the provisions of section 161 or section 145, as the case may be, of the Indian Evidence Act, 1872 (1 of 1872), shall apply.
Study: explanations and related material
Now BNSS 192 (corresponding section). CrPC → BNSS converterSource: BPR&D BNSS–CrPC corresponding section table (UP Police, 2024-07-03), p10
Official reference: Ministry of Home Affairs: historical CrPC reference — source link checked: 2 October 2026.Recorded edition / snapshot date: 2024-06-30.Mobile-app reference import; the recorded snapshot date is not a fresh legal-currency guarantee. The linked government text is an independent authoritative reference, not certification that this website reproduces the same edition. The source link was checked, not every provision or subsequent amendment. Check commencement notifications, savings and jurisdiction-specific variations separately. Section 135 was restored and individually checked against the linked government PDF (pages 75–76) on 2026-10-02; this is not a verification of the whole collection. Schedules and forms are not consolidated here. Historical code retained for reference; read the repeal/savings provisions in the successor code.
This text is for reference, not legal advice. Consult the official source for the authoritative text.
Other sections in this chapter
- 154. Information in cognizable cases
- 155. Information as to non-cognizable cases and investigation of such cases
- 156. Police officer's power to investigate cognizable cases
- 157. Procedure for investigation
- 158. Report how submitted
- 159. Power to hold investigation or preliminary inquiry
- 160. Police Officer's power to require attendance of witnesses
- 161. Examination of witnesses by police
- 162. Statements to police not to be signed: Use of statements in evidence
- 163. No inducement to be offered
- 164. Recording of confessions and statements
- 164A. Medical examination of the victim of rape
- 165. Search by police officer
- 166. When officer in charge of police station may require another to issue search-warrant
- 166A. Letter of request to competent authority for investigation in a country or place outside India
- 166B. Letter of request from a country or place outside India to a Court or an authority for investigation in India
- 167. Procedure when investigation cannot be completed in twenty-four hours
- 168. Report of investigation by subordinate police officer
- 169. Release of accused when evidence deficient
- 170. Cases to be sent to Magistrate when evidence is sufficient
- 171. Complainant and witnesses not to be required to accompany police officer and not to be subject to restraint
- 173. Report of police officer on completion of investigation
- 174. Police to inquire and report on suicide, etc
- 175. Power to summon persons
- 176. Inquiry by Magistrate into cause of death