Our senior advisers

TJN focuses on research and advocacy. Our Senior Advisers are experts in their field who help us with research and policy recommendations.

blumJack Blumis one of the United States’ leading white-collar defense attorneys specialising in money laundering. He has worked for law firms in the areas of bank and securities firm compliance, congressional investigations, international financial crime, money laundering and offshore tax evasion. He has been an expert witness and consultant for various US government agencies and private clients. He served for many years as a U.S. Senate staff attorney, where he was involved in numerous well-known investigations, including the investigation of Bank of Credit and Commerce International (BCCI), General Noriega’s drug trafficking and Lockheed’s overseas bribes. Jack Blum has been a consultant to the United Nations Centre on Transnational Corporations, the United Nations Office of Drug Control and Crime Prevention, and served as the chair of the experts group on international asset recovery which was convened by the United Nations Centre for Drug Control and Crime Prevention. He often testifies about money laundering and tax evasion before U.S. congressional committees.


james_s._henry_20030917James S. Henry is a U.S. economist, attorney, and investigative journalist who has written extensively about global banking, debt crises, tax havens and economic development. In the corporate world, Henry served as Chief Economist, McKinsey & Co. (NYC global h.q.); VP Strategy, IBM/Lotus Development Corporation (Cambridge), Manager, Business Development, the Chairman’s Office (Jack Welch), GE (Fairfield), and senior consultant Monitor Group,the international consulting firm. As Managing Director of Sag Harbor Group, a strategy consulting firm, his clients have included such enterprises as ABB, Allen & Co., AT&T, AT Kearney, Calvert Fund, Ce-mex, ChinaTrust, the Scotland Yard/FBI Task Force on Caribbean Havens, IBM/Lotus, Intel, Interwise, Lucent, Merrill Lynch, South Africa Telkom, Rockefeller Foundation, the Swedish Power Board, TransAlta, UBS Warburg, Volvo, and Monitor Company. A member of the New York Bar, he has served as a pro bono cooperating attorney for the NYCLU on First Amendment issues, and as Vice President, New York Civil Liberties Union – Suffolk County. He is author of the acclaimed investigative economics book The Blood Bankersand his articles and citations have appeared in The New York Times, The Wall Street Journal, The New Republic, The Nation, The Conference Board, The Washington Post, Harpers, Fortune, Jornal do Brasil, The Manila Chronicle, La Nacion, and many others.


MargolisAdrienne Margolis is the founder of Lawyers for Better Business, www.L4BB.org, a website and global network to keep lawyers one step ahead of developments in business and human rights.  She is a journalist and a consultant with a wealth of writing and project management experience, currently a senior advisor to the Tax Justice Network and a member of the UK Equality and Human Rights Commission Business and Human Rights Working Group.



headshot_KrishenMehtaKrishen Mehta completed his 30 year career with PricewaterhouseCoopers in 2008 having served in its New York, London, and Tokyo offices. While at PricewaterhouseCoopers, he was responsible for PwC’s US Tax practice in Japan, Singapore, Malaysia, Taiwan, Korea, China, and Indonesia, and worked with over 140 American companies conducting business in Asia. Krishen is currently an advisor to Aspen Institute’s Business and Society Program, and is a member of the Asia Advisory Council of Human Rights Watch. He is also a Trustee of the Korbel School of International Studies at the University of Denver, and of the Institute of Current World Affairs in Washington, DC. Krishen has taught at a number of Universities, including American University and the Fletcher School of Law and Diplomacy at Tufts University in Boston. He has been an invited speaker at the Global Justice Program at Yale University, and has conducted Capstone workshops for graduate students at the School of International and Public Affairs at Columbia University. From 2010-2012, Krishen was Co-Chairman of the Advisory Board of Global Financial Integrity, a division at the Center for International Policy in Washington, DC.


Ronen Palanpalan is Professor of International Political Economy (IPE) at City University, London. He has previously been a professor of IPE at the University of Birmingham and Sussex University, a lecturer in International Relations at the University of Newcastle-upon-Tyne, a visiting professor at the Hebrew University, Jerusalem and York University, Canada. He was also a founding editor of the Review of International Political Economy and member of the Fellow and Promotion Committee at the Institute of Development Studies, Brighton. His work lies at the intersection between international relations, political economy, political theory, sociology and human geography. He has written several books and articles, book chapters and encyclopaedia entries on the subject of Offshore and Tax havens, state theory and international political economic theory.


picciottoSol Picciotto is emeritus professor of law at Lancaster University, where he taught for 15 years; prior to that he taught at the University College Dar es Salaam (1964-68), and the University of Warwick (1968-92). He has researched and written extensively on international taxation, as well as other aspects of international financial and business regulation, including tax havens and offshore financial centres. He is the author of International Business Taxation (1992), Regulating Global Corporate Capitalism (2011) and numerous articles and book chapters, many of which are available on his webpage. He is a member of the Advisory Group of the International Centre for Tax and Development, and a corresponding contributor to Tax Analysts.


QuentinDavid Quentin is a UK barrister who has worked at Allen & Overy, Farrer & Co, and at the independent bar. He advises on UK and international tax law, specialising in the taxation of complex corporate, financial and property transactions, disputes with the UK’s revenue authorities, and the taxation of not-for-profit entities.  He has extensive practical experience at the aggressive end of the tax risk business, having advised on high-value cross-border tax-structured finance, transfer pricing disputes, and various kinds of tax avoidance schemes.


SadiqKerrie Sadiq is a Professor in the School of Accountancy at the QUT Business School, Queensland University of Technology, Australia and an Adjunct Fellow of the Taxation Law and Policy Research Group, Monash University.  She holds a Bachelor of Commerce from The University of Queensland, a Bachelor of Laws (Honours) from The University of Queensland, a Master of Laws from Queensland University of Technology, and a PhD from Deakin University.  Kerrie is a Barrister, Supreme Court of Queensland and a Fellow of the Taxation Institute of Australia where she is Deputy Chair of their National Education, Examinations, and Quality Assurance Board.  She primarily researches in international tax, tax expenditures and capital gains tax.  Kerrie is a co-author of several taxation texts and author of numerous publications in both Australian and International journals and edited books including the Bulletin for International Taxation, Australian Tax Forum, Journal of International Tax, Canadian Tax Journal and the New Zealand Journal of Taxation Law and Policy.  Prior to joining Queensland University of technology, Kerrie spent 20 years at the University of Queensland, as a member of both their Law School and Business School.


SikkaPrem Sikka is a professionally qualified accountant with experience in industry and commerce. Since 1996, he has held the position of Professor of Accounting at the University of Essex. Prem’s research on accountancy, auditing, corporate governance, corporate social responsibility, insolvency, globalisation, money laundering, tax avoidance and business affairs has been published in books, international scholarly journals, newspapers and magazines. He has also appeared on radio and television programmes to comment on accountancy and business matters. He is director of the Association for Accountancy & Business Affairs. He writes regularly in Britain’s Guardian newspaper; a list of his articles is available here.


ugartecheOscar Ugarteche is an economist who works at the Institute of Economic Research at the Universidad Nacional Autónoma de Mexico.  He coordinates the work of the Latin American Economic Observatory and regularly participates in the multi stakeholder consultations of the United Nations Finance for Development roundtable meetings in New York.  He was also senior adviser on economic and financial corruption to the Peruvian Congress on both the Diez Canseco Commission on economic crimes and the Herrera Commission on corruption (2001-2003).


OLYMPUS DIGITAL CAMERADr. Attiya Waris, is an Advocate, Arbitrator and Senior Lecturer, Law School, University of Nairobi in Kenya, where she has been teaching for over 10 years. She is currently a visiting lecturer at the University of Rwanda as well as the University of Pretoria. She holds a PhD from Lancaster University, UK and holds two Masters of Laws one in Human Rights and Democratisation in Africa from the University of Pretoria in South Africa and another in Business and Commercial Law from the University of London as well as an Undergraduate Honours Law degree from the University of Nairobi. She is the current Managing Editor of the University of Nairobi Law Journal and a co-editor of the Journal of Australian Taxation and is a Board member of Lawyers 4 Better Business as well as being a past Vice-Chair of the Tax Justice Network. She researches on the links between tax revenue and tax spending with reference to human rights, development and poverty alleviation, as well as the movement of wealth across borders and the impact it has on developing states. Attiya is a both author and co-author of several taxation books and author of numerous publications in both Kenyan and international journals and edited books including the International Bulletin for Fiscal Development, Transfer Pricing Journal, WHO Bulletin. She comes from a mixed practitioner / academic background, having worked in the UK as well as several countries in Europe and Africa in academia, law firms, non-governmental organisations, and the United Nations.

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