Factual and Procedural Background
This opinion concerns group proceedings brought by a Representative Party on behalf of a group of pursuers against multiple Defenders, companies involved in the manufacture, marketing, sale, or financing of certain diesel vehicles. The claim arises from the alleged presence of prohibited "defeat devices" in the emissions control systems (ECS) of diesel engines in vehicles purchased or leased by group members. These devices purportedly reduced the effectiveness of the ECS under real-world driving conditions, contrary to EU Emissions Regulations, and were allegedly undisclosed to regulatory authorities, resulting in false certification of compliance.
The Representative Party initially relied on publicly available materials and limited testing but now seeks recovery of detailed documents from the Defenders to clarify the design and operation of the ECS. The Defenders oppose this application. The court directed a full hearing to determine the scope and propriety of document recovery under the relevant procedural rules governing group proceedings.
Legal Issues Presented
- Whether the Representative Party is entitled to an order for production of extensive documents relating to the design, manufacture, and regulatory submissions concerning the ECS in the vehicles at issue under Chapter 26A of the Rules of Court of Session 1994.
- The proper scope and limits of the court's powers to order recovery of documents in group proceedings, including the applicability of the "post litem motam" (post-litigation inception) principle and confidentiality claims.
- The proportionality and reasonableness of the volume and breadth of documents sought, considering the costs, disruption, and relevance to the pleaded case.
- The court’s discretion regarding the management of the document recovery process, including timing, costs, and potential security for expenses.
Arguments of the Parties
Representative Party's Arguments
- The court has wide and innovative procedural powers under Chapter 26A to ensure fair and efficient management of complex group proceedings, including broad powers to order disclosure and recovery of documents.
- The documents sought are relevant to the issues in dispute and relate to matters already averred in the pleadings, including matters relied upon by the Defenders themselves.
- The Representative Party faces an "information asymmetry" and requires disclosure to specify and particularise the case with sufficient detail.
- Recovery under Chapter 26A offers greater flexibility than traditional commission and diligence, enabling efficient handling of potentially large volumes of documents.
- Claims of confidentiality and "post litem motam" status can be addressed on a document-by-document basis after production, not as a bar to ordering recovery generally.
- Costs and expenses of document recovery can be reserved until substantive issues are resolved, and no general rule requires security for costs in advance.
Defenders' Arguments
- The list of documents sought is overly broad, vague, and constitutes a "fishing expedition" not properly grounded in the pleaded case.
- Scottish courts require a party seeking production to demonstrate the existence, possession, and relevance of documents; this has not been done satisfactorily.
- Many documents sought are irrelevant to the pleaded case or exceed the scope of the Representative Party’s allegations.
- Significant portions of the documents are likely "post litem motam," produced after the threshold of a real likelihood of litigation, and thus not recoverable.
- The volume of documents and associated costs are disproportionate, with estimates of nearly £5 million and 60,000 person-hours, justifying a more focused approach.
- Recovery from non-parties (such as authorized dealerships) is unduly burdensome and unnecessary.
- The court should require security for costs and allow a substantial timeframe for compliance if any order is made.
Table of Precedents Cited
| Precedent |
Rule or Principle Cited For |
Application by the Court |
| Cavallari v Mercedes-Benz Group AG [2023] EWHC 1888 (KB) |
Recognition of "information asymmetry" in disclosure and pleading requirements. |
Used to illustrate the need for disclosure to overcome information imbalance before detailed pleadings can be made. |
| Alame v Shell plc [2024] EWCA Civ 1500 |
Disclosure should be informed by explanations of why further disclosure is necessary before full pleadings. |
Supported the principle that disclosure aids formulation of the case, not just responding to vague pleadings. |
| McGill v Ferrier (1836) 15 S 178 |
Discretionary nature of costs and expenses related to document recovery. |
Rejected any general rule requiring security for costs; reserved cost issues until substantive resolution. |
| National Exchange Co v Drew and Dick (1858) 20 D 837 affirmed (1860) 22 D (HL) 9 |
Requirement of proof of existence and possession of documents before ordering production. |
Defenders cited to argue against broad orders lacking specific admissions. |
| Civil Service Building Society v MacDougall 1988 SC 58 |
Documents must be necessary to specify or respond to pleadings; onus on applicant to show necessity. |
Defenders relied on this to oppose broad, unfocused document recovery. |
| Greig v Crosbie (1855) 18 D 193 |
Prohibition of "fishing expeditions" in discovery. |
Defenders argued the Representative Party’s requests amounted to such an expedition. |
| Paterson v Paterson 1919 1 SLT 12 |
Discovery must be relevant to pleaded facts; casting a wide net is improper. |
Supported the defenders’ position against overly broad document requests. |
| Boyle v Glasgow Royal Infirmary 1969 SC 72 |
Limits on discovery and proportionality considerations. |
Emphasised the need for proportionality in ordering document production. |
| Somervell v Somervell (1900) 8 SLT 112 |
Consideration of cost, disruption, and proportionality in document recovery. |
Used to highlight the importance of proportionality in this case. |
| Healthcare at Home Ltd v CSA [2011] CSOH 22 |
Balancing confidentiality against the need for disclosure in litigation. |
Applied to assess confidentiality claims regarding documents. |
| Marcel v Commissioner of Police of the Metropolis [1992] Ch 225 |
Balancing public interest in confidentiality with disclosure in litigation. |
Referenced regarding confidentiality claims, noting the case differs as documents are sought from parties, not public authorities. |
| Bunn v BBC [1999] FSR 70 |
Confidentiality of information gathered by police and harm from collateral disclosure. |
Used to illustrate the public interest in confidentiality of investigatory material. |
| More v Brown & Root Highland Fabricators Ltd 1983 SLT 669 |
Definition and application of "post litem motam" documents. |
Applied to determine which documents are protected from recovery based on timing and purpose of creation. |
| Anderson v St Andrews Ambulance Association 1942 SC 555 |
General rule against recovery of materials prepared in contemplation of litigation. |
Guided the court’s approach to "post litem motam" documents, emphasizing qualitative assessment. |
| Marks & Spencer Ltd v British Gas Corporation (No 1) 1983 SLT 196 |
Distinguishing reports prepared pre- and post-litigation for recoverability. |
Supported the court’s nuanced approach to document status based on purpose rather than date alone. |
| Forsyth v Pringle Taylor & Lamond Lawson (1906) 14 SLT 658 |
Right to payment for the trouble of searching and producing documents. |
Referenced regarding costs related to document recovery. |
| Phoenicia Asset Management Sal v Alexander [2010] CSOH 71 |
Costs of document recovery by third parties and requirement of payment as condition precedent. |
Distinguished from the present case where parties seek recovery under Chapter 26A. |
| Investors Compensation Scheme Limited v West Bromwich Building Society [1998] 1 WLR 896 |
Recognition that some legal principles may be outdated and need adaptation. |
Used to support the view that traditional principles underlying commission and diligence require modern adaptation. |
Court's Reasoning and Analysis
The court acknowledged the broad and flexible powers conferred by Chapter 26A of the Rules of Court of Session for managing group proceedings, particularly in relation to disclosure and recovery of documents. It rejected the argument that these powers should be constrained by traditional principles applicable to commission and diligence, emphasizing the need for modern case management in complex litigation.
The court identified three key factors guiding the exercise of its discretion: (a) the relevance of the material to matters in dispute, (b) the parties’ relative access to information, and (c) the proportionality of the burden imposed by the order.
Regarding the "post litem motam" principle, the court adopted a qualitative rather than purely temporal test, requiring examination of whether documents were prepared in contemplation of litigation. Confidentiality claims were to be assessed on a document-specific basis after production.
The court found that the Representative Party’s case, though presently lacking in detailed specification due to "information asymmetry," was sufficiently articulated to justify production of certain categories of documents. It accepted that some document requests were overly broad or irrelevant and refined the scope of production accordingly.
The court noted the significant estimated costs and time for compliance and emphasized the need for proportionality, reserving the issue of expenses until substantive issues were resolved.
Specific document categories were addressed as follows:
- Certificates of Conformity: No court order needed as Defenders agreed to produce examples voluntarily.
- Documents relating to the ECS design and operation in two specific vehicle models: Ordered produced, with confidentiality and post-litigation claims to be managed.
- Documents relating to Adam Opel AG’s 2016 response to the European Parliament enquiry: No order made as the Representative Party already possessed the response.
- Documents submitted to Type-Approval Authorities for certain vehicle models: Ordered produced due to relevance to allegations of fraudulent misrepresentation.
- Documents concerning recall notices and software updates: Ordered produced only in respect of recall notices and consequential software updates; broader requests refused.
- Documents relating to specific regulatory investigations and responses: No order made as these were not central to the pleaded case and likely post-litigation.
- Documents held by authorized dealerships and repairers: Excluded due to disproportionate burden and duplication.
- Documents relating to communications about software updates to group members: Ordered produced as potentially relevant to misrepresentation and limitation issues.
Holding and Implications
The court GRANTED IN PART the Representative Party’s motion for recovery of documents under Chapter 26A of the Rules of Court of Session 1994, making specific orders for production of defined categories of documents while refusing others as disproportionate, irrelevant, or unnecessary.
The Defenders are to produce documents concerning the emissions control system design and operation in specified vehicle models, documents submitted to Type-Approval Authorities related to those models, certain recall notices and consequential software updates, and communications about software updates to group members (excluding third-party dealerships and repairers). The Defenders will voluntarily produce example Certificates of Conformity without a court order.
The court reserved the question of the costs and expenses of the document recovery exercise until after substantive issues in the litigation are resolved.
This decision clarifies the court’s approach to document recovery in group proceedings, balancing the need for disclosure against proportionality, confidentiality, and the protection of documents prepared in contemplation of litigation. It affirms the court’s broad case management powers under Chapter 26A while emphasising the necessity for focused and relevant disclosure.