Dr. Michael Halberstam

The appellants, plaintiffs in a proposed class action alleging price-fixing in the foreign exchange market, obtained an ex parte subpoena in the United States under 28 U.S.C. 1782 against a non-party, Bloomberg.

The respondents successfully moved before the case management judge for an order requiring the appellants to obtain authorization under the Ontario Rules of Civil Procedure before taking any steps to enforce the subpoena.

The Divisional Court dismissed the appellants' appeal, finding that the motion judge correctly held that the appellants could not use the U.S. process to circumvent Ontario's strict rules on pre-certification discovery of non-parties, and that the appellants had failed to make full and fair disclosure to the U.S. court.

In a proposed national class action alleging price-fixing in the foreign exchange market, the plaintiffs obtained an ex parte subpoena in the United States under 28 U.S.C. §1782 to compel pre-certification discovery from a non-party, Bloomberg LP.

The defendants brought a motion to enjoin the plaintiffs from taking any steps in furtherance of the subpoena without authorization from the Ontario court.

The court granted the motion, finding that the plaintiffs had circumvented Ontario's rules and jurisprudence regarding the discovery of non-parties and pre-certification discovery in class actions.

The court held that it has jurisdiction to control its own process and regulate the examination of non-parties for an Ontario action.