“Vagueness and good law are simply incompatible.”

Guyanese-British business owner and activist

Gina Nadira Miller is a Guyanese-British business owner and activist. She became widely known for bringing the 2016 R (Miller) v Secretary of State for Exiting the European Union case against the British government over its authority to begin Brexit without Parliament’s approval. She later won a legal challenge in September 2019 over the government’s prorogation of Parliament, a case formally supported by former prime minister Sir John Major and the shadow attorney general, Shami Chakrabarti. In 2012, she founded the True and Fair Campaign, which calls for an end to financial misconduct in the investment and pension industries. She was also a candidate in the 2025 University of Cambridge Chancellor election.