Ellen Lefley is JUSTICE's Senior Lawyer, before which she practised as a barrister in England. JUSTICE is a human rights and law reform charity, which has been working to improve the UK justice system since 1957. It is the UK section of the International Commission of Jurists. Ellen leads JUSTICE’s current workstream on artificial intelligence, human rights and the law, which in 2025 published a rights and rule of law-based framework for AI in the justice system, co-authored with Sophia Adams Bhatti, and a report on AI in policing: international lessons and domestic solutions. Recent work has included advising Government ministers on the regulation of biometric technology, and advising Parliament on the human rights impacts of increasing Government data access powers to social security recipients' bank accounts. She also has written on the right to a human judge in the civil law context, co-authored with Professor Mimi Zou, in Cambridge University Press’s Handbook on Generative AI and the Law (2025).