Po Jen Yap is a Professor of Law at the University of Hong Kong (HKU), Faculty of Law, where he specialises in comparative constitutional law. He graduated from the National University of Singapore with an LLB degree and he obtained LLM qualifications from both Harvard Law School and University College London. He also has a PhD degree from the University of Cambridge. He is an Advocate and Solicitor of the Supreme Court of Singapore and an Attorney at Law in the State of New York, USA. His sole-authored publications include Constitutional Dialogue in Common Law Asia (2015) and Courts and Democracies in Asia (2017). He was the editor of Judicial Review of Elections in Asia (2016) and Constitutional Remedies in Asia (2019).