Independent think tank · founded 2017

Connecting science and policy for effective, sustainable solutions

We promote harm reduction, regulation and lower-risk alternatives instead of ineffective prohibition.

Who we are

Science-based addiction policy

Ratio, founded in 2017 by former national drug-policy coordinator Jindřich Vobořil, is an independent platform focused on science-based addiction policy. We promote harm reduction and a regulated market that replaces higher-risk substances with safer alternatives.

Our strategy balances prevention, treatment and a regulated market of low-risk alternatives, with regulation proportional to risk. Our goal is responsible, sustainable policy grounded in scientific evidence, balancing human rights, societal needs and safety.

What we do

From analysis to legislation

  1. 01 Producing strategic documents and expert analyses as a basis for responsible policy.
  2. 02 Drafting and advocating legislation that reflects scientific evidence.
  3. 03 Hosting roundtables, seminars and conferences connecting experts, politicians and public administration.
  4. 04 Cooperating with public administration and promoting ethical standards in substance regulation.
  5. 05 Shaping policy at national and international level (European Commission, European Parliament, UN, Pompidou Group).

Podcast

Drogerie Podcast

The RATIO podcast on drug policy, addiction and harm reduction. Conversations with experts, politicians and practitioners.

Spotify · all episodes

YouTube · latest episode

News & standpoints

What topics we cover

View more

People

Honorary and Expert Board

Honorary Board

Pavel Bém

Pavel Bém

MUDr. Pavel Bém is a physician, psychiatrist, and politician with significant experience in public health and addiction studies.

Michel Kazatchkine

Michel Kazatchkine

Michel Kazatchkine is a distinguished French physician, public health expert, and a prominent figure in public health policy.

Chokwan Kitty Chopaka

Chokwan Kitty Chopaka

Kitty Chopaka is a renowned advocate for cannabis reform, celebrated for her pioneering work in cannabis education and policy development in Thailand.

Wim van den Brink

Wim van den Brink

Wim van den Brink (1952), MD PhD, received his medical degree in 1981.

Bohuslav Sobotka

Bohuslav Sobotka

Bohuslav Sobotka is a distinguished Czech politician with a notable career in public service and leadership.

David Nutt

David Nutt

David Nutt is a leading British neuropsychopharmacologist specializing in the effects of drugs on the brain and behavior.

Ethan A. Nadelmann

Ethan A. Nadelmann

Dr. Ethan A. Nadelmann, described by the Rolling Stone as "the point man" for drug policy reform efforts and “the real drug czar,” Ethan Na…

Petr Smejkal

Petr Smejkal

MUDr. Petr Smejkal is a renowned Czech epidemiologist and infectious disease specialist with extensive professional and international experience in p…

Aleksander Kwaśniewski

Aleksander Kwaśniewski

Aleksander Kwaśniewski is a Polish politician who served as the President of the Republic of Poland from 1995 to 2005.

Václav Dejčmar

Václav Dejčmar

Václav Dejčmar is a Czech entrepreneur, investor, and philanthropist.

Expert Board

MUDr. Pavel Kubů

MUDr. Pavel Kubů

Pavel Kubů, MD, is an expert in medical informatics and addictology, focusing on research and the development of new therapeutic and preventive metho…

Ing. Jana Michailidu, Ph.D.

Ing. Jana Michailidu, Ph.D.

Ing. Jana Michailidu, Ph.D. is a Czech scientist, university lecturer, and expert in drug policy.

Ratio

Ústav pro společenský výzkum a vzdělávání, z.ú.
Hilleho 1842/5, 602 00 Brno

company ID: 06052363
tax ID: CZ06052363
Data box: 9mp7u2a

registered at the Regional Court in Brno

office@addiction-policy.eu

Mgr. Jindřich Vobořil, Pg.Dip.

Mgr. Jindřich Vobořil, Pg.Dip.

Chairman of the Board of Trustees

+420 725 805 865

voboril@addiction-policy.eu

Mgr. et Mgr. Helena Gherasim

Mgr. et Mgr. Helena Gherasim

Director

+420 777 916 253

gherasim@addiction-policy.eu

Ing. Jana Teplanová

Ing. Jana Teplanová

Office Manager

+420 724 966 476

teplanova@addiction-policy.eu

David Hluštík

David Hluštík

Spokesperson

+420 602 244 776

hlustik@addiction-policy.eu

Honorary and Expert Board

View board members

Contact

Get in touch

Ratio

Ústav pro společenský výzkum a vzdělávání, z.ú.
Hilleho 1842/5, 602 00 Brno

company ID: 06052363 · tax ID: CZ06052363
Data box: 9mp7u2a

Website created by Oosm.cz, 2026

We've changed our name

The Rational Addiction Policy Think Tank (IRAP) is now ratio

Original logo: Rational Addiction Policy Think Tank New logo: ratio

We're changing our brand, not what we do. We remain an independent think tank for evidence-based addiction policy.