I agree that the registration of a judgment in a foreign Court for purposes of execution does not rob the original court of its jurisdiction over the matter and the execution of its judgment. For, the judgment-creditor could be enforcing the judgment in both jurisdictions wherever he can find the debtor’s property. But the matter in issue herein, which in my view had been decided by the registering court in England which had jurisdiction so to do, and the Arbitrator duly appointed by consent of parties in accordance with the “compromise” order of the registering court, ought not be relitigated in the original court in Nigeria. I should think that doing so tantamount to either asking the Nigerian Court to sit on appeal over the decision of another Court which had already exercised coordinate jurisdiction available to either Court, or setting aside the award of the Arbitrator which the Respondent had not challenged in accordance with the known principles governing arbitral proceedings.
— Nzeako, JCA. Adwork Ltd. v Nigeria Airways Ltd. (1999) – CA/L/156/99