Controlling E-Discovery Costs Under CPR Practice Direction 57AD
Efficient Offshore Document Review in the English Business and Property Courts
Following the permanent enactment of Practice Direction 57AD into the English Civil Procedure Rules, disclosure in the Business and Property Courts is governed by strict proportionality principles. Litigation solicitors must manage document review costs aggressively while maintaining defensibility.
1. Practice Direction 57AD vs Traditional CPR Part 31
PD 57AD replaced traditional "standard disclosure" with a focused regime requiring Initial Disclosure (key documents relied upon when pleadings are served) followed by Extended Disclosure based on an agreed List of Issues for Disclosure. Standard disclosure (where parties search for documents that adversely affect their case or support another party) is no longer automatic.
2. The Five Extended Disclosure Models (A through E)
Parties must agree on specific Disclosure Models for each issue: Model A (no further disclosure); Model B (limited to disclosure of known adverse documents); Model C (request-led search for specific documents or narrow classes); Model D (narrow search for documents likely to support or adversely affect a claim); and Model E (exceptional broad search, including "train of inquiry" documents). Model D and E generate substantial reviewer volumes requiring disciplined first-pass coding.
3. Costs Budgeting (Precedent H) and E-Discovery Realization
Under CPR Part 3, English courts enforce strict Costs Management Orders. High London fee-earner hourly rates often breach judicial cost caps during the Disclosure Phase of Precedent H. Deploying offshore reviewer teams reduces the blended hourly cost of document classification from £250–£450/hour to predictable project rates, ensuring full cost recovery upon taxation.
4. Defensible Privilege & Redaction Workflows
Under PD 57AD paragraph 13, parties must identify privileged documents without disclosing their contents. Offshore reviewer teams apply standardized privilege tags, compile redactions over commercially sensitive confidential information, and format court-compliant Disclosure Certificates for solicitor sign-off.