In Federal Republic of Nigeria v. Process & Industrial Developments Limited (‘Nigeria v. P&ID’),[1] the English court was faced with an application for extension of time to challenge an arbitration award delivered well over two years before the application. The court granted the application despite the delay, on the basis that there was a strong prima facie case of fraud involved. This paved the way for a thorough inquiry into the allegations of fraud, which if proven, would upset the validity and finality of the arbitration award. This article will review the judgment of the court in Nigeria v. P&ID and highlight its contribution to jurisprudence on determining the point at which an allegation of illegality will be allowed to threaten the finality of an award.