Chair, Commission on Plastics and the Environment

Commissioner, UK Hydrogen Policy Commission (interest ceased 20 May 2024)

The member receives support from Thomas Davies, Director at Dignity in Dying, for her work in the House on assisted dying

Trustee, Sapphire Medical Foundation and Director of associated company

Trustee, Quaker Mental Health Fund

Member, Advisory Board, Oxford Cannabinoid Technologies (interest ceased 14 June 2019)

Honorary President (formerly chair), Dignity and Choice in Dying (trading as Dignity in Dying) and director of associated company

Visit to Cartagena, Columbia, 22-24 November 2015, at the invitation of Government of Columbia to attend and speak at an event on drug policy; costs of travel and accommodation were funded by Open Society Foundation

President, Haemophilia Society

Grant from Open Society Foundation for Research Officer and other expenses of the All-Party Parliamentary Group for Drug Policy Reform (interest ceased 8 May 2023)

Chairman, European Initiative for Drug Policy Reform

Visit to Denmark, 5-6 September 2013, as chair of the APPG on Drug Policy Reform; cost of travel and subsistence met by Open Society Fund via International Drug Policy Consortium

Visit to Spain, 15-16 September 2013, as chair of the APPG on Drug Policy Reform; cost of travel, subsistence and translation met by Open Society Fund via International Drug Policy Consortium

Visit to the Netherlands, 2 July 2013, as chair of the APPG on Drug Policy Reform; cost of travel and subsistence met by Open Society Fund via International Drug Policy Consortium

Visit to Belgrade, 21-23 May 2013, as chair of APPG on Drug Policy Reform; cost of travel and subsistence met by Open Society Fund via International Drug Policy Consortium

Visit to Oslo, 6-7 May 2013, as chair of the APPG on Drug Policy Reform; cost of travel and subsistence met by Open Society Fund via International Drug Policy Consortium

Visit to Paris, 18-19 June 2013, as chair of the APPG on Drug Policy Reform; cost of travel and subsistence met by Open Society Fund via International Drug Policy Consortium

Visit to Warsaw, Poland, 14-15 February 2013, to attend a drug policy dialogue; travel costs met by the Open Society Fund via International Drug Policy Consortium

Visit to Brussels and Tallin, Estonia, 7-8 November 2012 as Chair of the APPG on Drug Policy Reform to attend meeting with EC representatives, MEPs and national members of the Horizontal Group on Drugs, in Brussels, followed by a meeting in Tallin, Estonia with government ministers responsible for drug policy; cost of travel and accommodation met by Open Society Fund via International Drug Policy Commission

Project Chairman, Paul Hamlyn Foundation and Mental Health Foundation Right Here programme