Stewart is a dual qualified barrister and solicitor with nearly 30 years' experience. Since 2001 he has practised exclusively in the fields of Data Protection, Privacy and Cyber Security, most recently as the global leader of the legal services business in a Big 4 accountancy firm and the joint global leader of the multi-disciplinary data protection business.
He is recognised by the legal directories as one of the country’s leading lawyers in these areas, having acted in many high-profile cases and written or co-authored a number of influential textbooks.
In 2017 he was invited to give evidence to Parliament on the impact of the EU data protection regime on Brexit. He is also a past winner of the Financial Times Legal Innovator of the Year award, co-founder of The Cyber Security Challenge UK and President of the National Association of Data Protection Officers.