Guide
PD57AD Explained For Litigation Lawyers
23 pages · 32 min read
PD 57AD governs disclosure in UK litigation, outlining duties for parties and lawyers.
- Disclosure and PD 57AD
§ Guide
PD57AD Explained For Litigation Lawyers
This guide explains Practice Direction 57AD, detailing its purpose, duties, workflow, cooperation requirements, and technological implications for UK litigation lawyers.
Ref · E-D · 2026 · §LIBClass · ConfidentialJuris · England & WalesStatus · Active
Guide · 23 pages · 32 min read · Published 2026-08-29
UK litigation practitioners face procedural demands and cultural shifts when managing electronic disclosure under Practice Direction 57AD. Designed specifically for legal teams and litigation solicitors, the manual provides structured guidance on the rules governing disclosure duties, regime scope, and technological requirements across English civil courts. It addresses the practical hurdles of identifying known adverse documents, providing Initial Disclosure with pleadings, and completing the Disclosure Review Document alongside agreed Issues for Disclosure. Legal professionals learn how to navigate the full procedural workflow from pre-action contemplation through to the Case Management Conference, evaluating the five Extended Disclosure Models alongside tailored rules for Less Complex Claims. In addition to clarifying duties regarding inter-party cooperation and technology-assisted review, the text details common mistakes, technical limitations, and red flags requiring digital forensic expert involvement. Practical tools including client letter paragraphs, drafting aids, checklists, questions for opponents, and chronological timelines ensure legal representatives maintain compliance while mitigating procedural risk at every stage of a claim.
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§ Credit and source
Published by Computer Forensics Lab on 2026-08-29. Original material of the practice, free to read, cite and download. The authority behind this subject is Practice Direction 57AD, Disclosure in the Business and Property Courts, which you should read alongside this guide. See every guide's author and source.
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PRACTICEDIRECTION57AD · A GUIDE FOR UK LAWYERS PD 57AD Explained for Litigation Lawyers Purpose, Duties, Workflow, Cooperation and Technology COMPUTER FORENSICS LAB DISCOVERY. UK
§ ABOUT THE AUTHOR PREPARED BY COMPUTER FORENSICS LAB E-DISCOVERY TEAM FULL CHAIN-OF-CUSTODY DOCUMENTATION
§ CONTENTS In this guide 01 Executive summary 02 What PD 57AD is for: the problem and the culture change 03 Where it applies, and where it does not 04 The duties: parties and their lawyers 05 Known adverse documents 06 The workflow, stage by stage 07 Initial Disclosure 08 Issues for Disclosure and the DRD 09 The five Models 10 Cooperation: what the regime actually requires 11 The technological implications 12 Less Complex Claims and other variants 13 Worked example: a matter through the timeline 14 Common mistakes and technical limitations 15 Questions to ask · Suggested wording 16 Checklist and red flags · When to involve a digital forensic expert 17 Frequently asked questions 18 Glossary · References · Disclaimer · How a specialist laboratory can assist
§ 01 · ORIENTATION Executive summary THE HEADLINE ANSWER: WHATPD57ADIS
§ 02 · FIRST PRINCIPLES What PD 57AD is for: the problem and the culture change
§ 03 · TERRITORY Where it applies, and where it does not
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§ 04 · OBLIGATIONS The duties: parties and their lawyers PART Y DUTIES WHAT THEY MEAN IN PRACTICE
§ 05 · THEMORALCORE Known adverse documents
§ 06 · THE MACHINE The workflow, stage by stage PRESERVE INITIAL SIGNAL ISSUES DATA & CMC: SEARCH, CERTIFICATE CONTINUING (CONTEMPLATION) DISCLOSURE EXTENDED & METHOD ORDER S REVIEW, DUTIES & (WITH DISCLOSURE MODEL S (DRD S. PRODUCE VARIATION PLEADINGS) (DRD S. 2) STAGE AND TIMING WHAT HAPPENS
§ 07 · STAGE ON E Initial Disclosure
§ 08 · THECENTRALDOCUMENT Issues for Disclosure and the DRD
§ 09 · THEMENU The five Models MODEL WHAT IT ORDERS WHEN IT FITS
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§ 10 · ACROSS THE TABLE Cooperation: what the regime actually requires
§ 11 · UNDERTHEBONNET The technological implications
§ 12 · VARIANTS Less Complex Claims and other variants
§ 13 · IN THE WILD Worked example: a matter through the timeline WEEKSMINUS8TO0 · CONTEMPLATIONTOISSUE DAYS1TO42 · PLEADINGSCLOSETODRAFTDRD TOTHECMCANDBEYOND
§ 14 · WHEREITGOESWRONG Common mistakes and technical limitations Common mistakes Technical limitations
§ 15 · INTERROGATORIES & DRAFTING AIDS Questions to ask · Suggested wording Ask your client Ask your opponent Ask an e Discovery / forensic provider ISSUE ) SUGGESTED WORDING · CLIENT LETTER PA R AG RAPHONKNOWNA DV ERSE DOCUMENTS
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§ 16 · QUICK CONTROL Checklist and red flags · When to involve a digital forensic expert The PD 57AD checklist Red flags When to involve a digital forensic expert
§ 17 · COMMON QUESTIONS Frequently asked questions Does PD 57AD apply to my case? Is Model D the default? What exactly is a known adverse document? What if the other side will not cooperate? Are we required to use technology-assisted review? What happens if we get it wrong?
§ 18 · REFERENCE Glossary DRD Sources and authoritative references DISCLAIMER
§ HOW A SPECIALIST LABORATORY CAN ASSIST Working with Computer Forensics Lab Speak to a forensic examiner, not a salesperson. INSTRUCTTHELAB NEWENQUIRIESEMAILE - DISCOVERY
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Instruct the practice
Bring us in early.
Defensibility is built, not retrofitted.
Whether you are responding to a regulator, preparing for disclosure, or scoping an internal investigation, start the chain of custody with a short, confidential conversation.