In a billion‑dollar negligence class action against auditors arising from allegedly defective audit reports relied upon by lenders, the plaintiffs brought a motion under Rule 30.10 of the Rules of Civil Procedure seeking production of investigative materials held by the Institute of Chartered Accountants of Ontario relating to disciplinary proceedings against two audit partners.
The court held that production from a non‑party requires proof that the documents are relevant and that it would be unfair to require the moving party to proceed without them.
The plaintiffs failed to demonstrate unfairness because they already possessed the underlying documentary record and extensive discovery evidence, and the investigator’s report was not necessary for the pending partial summary judgment motion or the pleaded issue estoppel.
The court further held that the materials were protected by a case‑by‑case privilege under the Wigmore criteria arising from confidential communications between the professional regulator and its members during disciplinary investigations.