Migration Agent Fraud and Protection Visa Validity: When Later Awareness of False Claims Removes Jurisdictional Error in Judicial Review? Introduction Based on the authentic Australian judicial case BJK19 v Minister for Immigration and Multicultural Affairs (No 2) [2025] FedCFamC2G 5, File No SYG 805 of 2019, this article disassembles the Court’s judgment process regarding evidence and law. It transforms complex judicial reasoning into clear, understandable key point analyses, helping readers identify the core of the dispute, understand the judgment logic, make more rational litigation choices, and providing case resources for practical research to readers of all backgrounds. Chapter 1: Case…