Dr. René Mahieu is Assistant Professor of data protection and privacy law at Open University Netherlands, and affiliated researcher at LSTS. He is writing a monograph on the right of access to personal data in the EU to be published at OUP. His current research focuses primarily on questions around effective enforcement of data protection law by national supervisory authorities. In 2023-2024 he combined his academic work with work as Senior Advisor on the enforcement strategy at the Dutch data protection authority. René holds a PHD in laws from Vrije Universiteit Brussels. Previously he was a Visiting Scholar at Centre for Philosophy of Natural and Social Science at the London School of Economics, studied Philosophy and Economics at Erasmus University Rotterdam, and has a Masters degree in the Economics of Ageing and Pensions from Tilburg University.