
Harry Sumnall is a Professor in Substance Use at the Public Health Institute. He is interested in all aspects of substance use, particularly young people’s health issues. Harry’s funded research programmes have examined the evidence base for substance misuse prevention and the mechanisms for implementing evidence based practice and policy.
Harry was a Member of the UK Government Advisory Council on the Misuse of Drugs between 2011-2019, a Board Member and Past-President of the European Society for Prevention Research (2010-2019), and a scientific advisor to the MIND Foundation. In 2018, Harry was a Speaker at Cannabis Europa in London.
Attend Cannabis Europa London 2026
26–27 May 2026 · The Barbican, London · Europe's leading cannabis industry conference
General Release
VIP Experience
BoC Awards
Working with Prohibition Partners for Cannabis Europa has been an absolute pleasure. Their dedication, exceptional professionalism, and collaborative spirit have made a meaningful difference, and we sincerely value their support.

We were truly honoured to sponsor the VIP Lounge and be part of an event that continues to set the standard for meaningful dialogue and progress in the medical cannabis industry. We left feeling excited and optimistic about the future.
