Isaac Wunder order

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An Isaac Wunder order is an order issued by an Irish court restricting the ability of a vexatious litigant to institute legal proceedings without leave from that or another court, whether for a specified period of time or indefinitely. It is named after Isaac Wunder, an Irishman who became notorious for instituting a number of actions that were subsequently deemed by the court to be frivolous or vexatious.


In the mid-1960s, the plaintiff in Keaveney v. Geraghty[1] sought damages for libel in proceedings before the High Court. The defendant applied for a stay of proceedings on the grounds that they were, inter alia, frivolous and vexatious, and an abuse of process. The court granted the stay, whereupon the plaintiff appealed. The Supreme Court varied the ruling to provide that no further proceedings on the action could be taken without leave of the court.[2]

A few years later, Isaac Wunder sued the Irish Hospitals Trust, also known as the Irish Sweepstake, for claimed sweepstakes winnings.[3] His claims were dismissed as frivolous and vexatious. Wunder appealed. Wunder had made several claims against the defendants on the matter, and in each case the claims had been ruled groundless. In the light of this history of repeated attempts to get a more favourable ruling on the same issue, the Supreme Court issued an order similar to that issued in Keaveney, directing that Wunder could take no further proceedings on the matter at the High Court.[2] Although this was not the first order of its kind issued, it nonetheless became known as the "Isaac Wunder order".


  • 2010: John Burke, a farmer from County Tipperary, took seven sets of judicial review proceedings to the High Court, challenging proceedings against him in the District Court and the Circuit Court. The High Court issued an Isaac Wunder order against him, preventing him from taking further such proceedings without leave from the President of the High Court.[4]
  • 2010: A married woman, identified only as "LO'M", began separation proceedings in 2000 against her husband, identified only as "JO'M". During the course of the next four years, more than a hundred days were spent on the action. JO'M sued his wife's solicitors for 6 million euros, claiming conspiracy and extortion. The High Court imposed an Isaac Wunder order, barring him from further proceedings against the solicitors without the court's approval.[5]

See also[edit]


  1. ^ [1965] IR 551
  2. ^ a b Moore, Anthony. "Isaac Wunder Orders" (PDF). Judicial Studies Institute Journal (Ireland). Archived from the original (PDF) on 2011-07-25. Retrieved 2011-06-18.
  3. ^ Wunder v. Hospitals Trust, (unreported) (Supreme Court of Ireland 24 January 1967). (Walsh, Haugh and O'Keeffe JJ)
  4. ^ "Judge imposes an Isaac Wunder order on Tipperary farmer". The Irish Times. 2011-02-21. Retrieved 2011-06-17.
  5. ^ Kieron Wood (2010-09-19). "Husband banned from bringing more cases". The Sunday Business Post Online (Ireland). Retrieved 2011-06-17.