This Practice Note explains the key changes made to the Criminal Procedure Rules 2025 (CrimPR 2025), SI 2025/909 by the Criminal Procedure (Amendment) Rules 2026, SI 2026/47, which came into force primarily on 6 April 2026, with some small changes taking effect on 23 February 2026. The changes include clarification of the open justice principle in relation to access to court records, amendments to time limits expressed in business days, changes to the procedure for objecting to written witness statements, clarification of the powers of magistrates’ courts in relation to fines, substantial revision of the rules governing behaviour orders, amendments relating to judicial approval under the Regulation of Investigatory Powers Act 2000 (RIPA 2000), and a number of technical corrections. The Criminal Procedure Rule Committee has published a guide to the Criminal Procedure (Amendment) Rules 2026 which can be found here. For the most recent updates to CrimPR 2025, SI 2025/909, see Practice Note: Criminal Procedure Rules (CrimPR)—updates October 2026. Corrections to the Criminal Procedure Rules 2025 These amendments are in force