Philip Sales (Lord Sales) is the Deputy President of the Supreme Court of the United Kingdom, to which he was appointed in 2019 following distinguished service in the Court of Appeal of England & Wales. Prior to his judicial appointments, he served as First Treasury Counsel, representing the Government in major constitutional and public law cases. He has played a significant role in the development of UK jurisprudence across a wide range of complex legal domains.

• Acknowledgements 1: Introduction 2: The Constitutional Agency Exercised by the Executive 3: Parliament as Constitutional Agent 4: Constitutional Agency as Exercised by the Courts 5: Conclusion

Philip Sales (Lord Sales) is the Deputy President of the Supreme Court of the United Kingdom, to which he was appointed in 2019 following distinguished service in the Court of Appeal of England & Wales. Prior to his judicial appointments, he served as First Treasury Counsel, representing the Government in major constitutional and public law cases. He has played a significant role in the development of UK jurisprudence across a wide range of complex legal domains.

• Acknowledgements 1: Introduction 2: The Constitutional Agency Exercised by the Executive 3: Parliament as Constitutional Agent 4: Constitutional Agency as Exercised by the Courts 5: Conclusion

Philip Sales (Lord Sales) is the Deputy President of the Supreme Court of the United Kingdom, to which he was appointed in 2019 following distinguished service in the Court of Appeal of England & Wales. Prior to his judicial appointments, he served as First Treasury Counsel, representing the Government in major constitutional and public law cases. He has played a significant role in the development of UK jurisprudence across a wide range of complex legal domains.

• Acknowledgements 1: Introduction 2: The Constitutional Agency Exercised by the Executive 3: Parliament as Constitutional Agent 4: Constitutional Agency as Exercised by the Courts 5: Conclusion