Described by Rolling Stone as "the point man" for drug policy reform efforts and “the real drug czar,” Ethan Nadelmann, JD, PhD is widely regarded as the outstanding proponent of drug policy reform in the United States and abroad. After teaching politics and public affairs at Princeton University (1987-1994), he founded and directed first The Lindesmith Center (1994-2000) and then the Drug Policy Alliance (2000-2017). He also co-founded the Open Society Institute’s International Harm Reduction Development program. Ethan has published extensively and spoken publicly in roughly forty states and forty countries. His TED Talk has over two million views. Ethan and his colleagues were at the forefront of dozens of successful campaigns to legalize marijuana, reduce the incarceration of drug law offenders, advance harm reduction approaches to drug use and addiction, and otherwise promote alternatives to the war on drugs. Ethan hosts the leading podcast about all things drugs: PSYCHOACTIVE, and he has become increasingly engaged in the debate over tobacco harm reduction.

Fiona Patten was a member of the Victorian parliament from 2014 to 2022. She campaigned on harm reduction policies for 30 years and ran the Australian adult industry association (Eros) for 20 years. She initiated and delivered reforms including voluntary assisted dying, abortion law reform, the decriminalisation of sex work and drug law reform. Since leaving parliament she has continued to work on social reform issues including criminal justice reform, regulating adult use of cannabis, access to medicinal cannabis, drug harm reduction including for tobacco, and a greater separation of church and state. She currently sits on a variety of health and justice boards. Fiona is passionate about tobacco harm reduction and constantly disappointed with her own country’s approach to it. In 2018 she published her autobiography -‘Sex, Drugs and the Electoral Roll’. She is the owner of a registered wildlife sanctuary.

Lindsey Stroud is a Senior Fellow at the Taxpayers Protection Alliance, which provides data and analysis to inform and assist policymakers when addressing consumer products. Her main areas of focus are goods including alcohol, tobacco and vapor products, and regulatory policies that affect adult access, including harm reduction, technology, innovation, antitrust and privacy. At The Heartland Institute, she authored policy resources and hosted a podcast on tobacco harm reduction, and has also worked for state lawmakers in two states. Creator and manager of Tobacco Harm Reduction 101 (thr101.org), she holds senior positions at the American Vapor Manufacturers Association and the Independent Women's Forum.

Professor Dr. Sharifa Ezat Wan Puteh is the Chairman of the Malaysian Society of Harm Reduction. As Professor of Public Health (Health Management and Health Economics) at National University of Malaysia, she is well-versed with the burden of non-communicable diseases on Malaysia’s health system and recognised as a prominent figure in public health, specialising in policy, economics, and medicine. As the Chairman of MSHR, she brings a wealth of experience and knowledge to the table, particularly in advocating for tobacco harm reduction and abstinence from nicotine addiction. Professor Dr. Sharifa earned her postdoctoral degree in Health Economics from the United Nations University-International Institute for Global Health (UNU-IIGH). She has served in significant roles including as Deputy Dean of the Faculty of Medicine for International Relations, President of Malaysia's Society of Harm Reduction (MSHR), and as a consultant to governmental bodies on various health-related matters, including occupational diseases and hospital efficiency.

Harry Shapiro is Director of DrugWise – an online drug information service - and Managing Editor of DS Daily - the daily online drug, alcohol and tobacco news service. He has worked in the drugs field for over 40 years, first with the Institute for the Study of Drug Dependence and then from 2000 with DrugScope where he was Director of Communications until the charity folded in 2015. Since 2015, he has been working with Knowledge-Action-Change promoting public health through harm reduction. He is the author and Executive Editor of the Global State of Tobacco Harm Reduction report, contributes a blog to Nicotine Science and Policy and is one of KAC’s media spokespeople.