About Us

The International Centre for Collective Action

Building on the Basel Institute on Governance’s decade long track record of support to and research into Collective Action initiatives against corruption, and to formalise and further strengthen the impact of this engagement, the Basel Institute in 2012 launched the International Centre for Collective Action (ICCA). The purpose of the ICCA is to assist companies and other concerned stakeholders in enhancing their ability to reduce the risk of corruption through Collective Action.

The promotion of Collective Action against corruption was one of the key objectives of the Basel Institute when it was founded in 2003, formalising an engagement of the Institute’s President Professor Mark Pieth and other leading Institute members in this area that dates back to the early 1990s.

Find out more about anti-corruption Collective Action at the Basel Institute.


The work of the ICCA is partially funded through a grant by the Siemens Integrity Initiative (SII), through various project-specific grants and through Basel Institute core funding. Additional corporate sponsoring is sought from global companies actively engaged in anti-corruption Collective Action.


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Gemma Aiolfi
Head of Compliance and Corporate Governance / Collective Action
+41 61 205 56 74
Email: gemma.aiolfi [at] baselgovernance [dot] org
Curriculum vitae

Gemma Aiolfi has been the Head of Compliance, Corporate Governance and Collective Action at the Basel Institute on Governance since July 2013.

Prior to that she was Legal Counsel to the Integrity Department and the internal Office of Special Investigations at ABB AG in Oerlikon Zurich, focusing on advising on internal corruption allegations in connection with the US Deferred Prosecution Agreement. Ms. Aiolfi was Global Head of Anti-Corruption at UBS AG in Zurich, and also worked in the Group Money Laundering Prevention Unit.  Whilst employed by the OECD’s Working Group on Bribery in International Business Transactions she was seconded to work at the University of Basel, where she helped to establish the Basel Institute on Governance and worked with the Chairman of the OECD Working Group, Prof. Mark Pieth.

Ms. Aiolfi also served as an advisor to the UN Independent Inquiry Commission on the Iraq Oil-for-Food Programme. Having studied Law at the London School of Economics, she was called to the bar of England and Wales and practised in London before relocating to Switzerland. Postgraduate law studies were undertaken at Basel and Stockholm Universities. She is a member of the board of Ethics and Compliance Switzerland and an external council adviser to the board of Graña y Montero, Peru.

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Scarlet Wannenwetsch
Project Associate Anti-Corruption Collective Action
+41 61 205 56 75
Email: scarlet.wannenwetsch [at] baselgovernance [dot] org
Curriculum vitae

Scarlet Wannenwetsch joined the Basel Institute in February 2017 as a Project Associate at the International Centre for Collective Action. Her focus at the ICCA is supporting the development and further implementation of the Siemens Integrity Project.

Prior to joining the Institute, Scarlet gained experience at the International Chamber of Commerce (ICC Germany) and as a legal advisor to an international start-up.

Scarlet holds a Law degree (LLB) from Kings College London as well as a Masters (LLM) from the Free University of Berlin focusing on Public International Law and Alternative Dispute Resolution. 

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Mirna Adjami
Project Manager Anti-Corruption Collective Action
+41 61 205 56 73
Email: mirna.adjami [at] baselgovernance [dot] org
Curriculum vitae

Mirna Adjamijoined the Basel Institute on Governance in February 2017 as a Project Manager for Anti-Corruption Collective Action, bringing over 15 years’ experience as an international human rights lawyer with a broad range of thematic expertise.  

Previously, Mirna served as a Senior Advisor to the United Nations High Commissioner for Refugees, Head of Office for the International Center for Transitional Justice in Kinshasa, DR Congo, a Legal Officer with the Open Society Justice Initiative, and a Staff Attorney with the National Immigrant Justice Center.

Mirna received a J.D. from Harvard Law School, a B.A. from Brown University, and a Diploma of Advanced Studies in Corporate Social Responsibility from the University of Geneva School of Economics and Management.  She is a Member of the New York Bar. 

Senior Advisors

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Mark Pieth
Email: mark.pieth [at] baselgovernance [dot] org
Curriculum vitae

Mark Pieth has been since 1993 Professor of Criminal Law and Criminology at the University of Basel, Switzerland. Having completed his undergraduate degree and his PhD in criminal law and criminal procedure at this university, he spent an extensive period of time abroad, most notably at the Max Planck Institute for Criminal Law and Criminology in Germany and the Cambridge Institute of Criminology in the United Kingdom. After practicing for a time as a private barrister (‘Advokat’), he returned to his alma mater to complete his post-doctoral (‘habilitation’) thesis on sanctioning and other aspects of criminology.

From 1989 to 1993, Prof. Pieth was Head of Section – Economic and Organised Crime at the Swiss Federal Office of Justice (Ministry of Justice and Police). In this role, he drafted legislation against money laundering, organised crime, drug abuse, corruption and the confiscation of assets. As a government official and later as an independent consultant, he also acquired extensive experience in international fora, amongst other things, serving as Member of the Financial Action Task Force on Money Laundering (FATF), Member of the Chemical Action Task Force on Precursor Chemicals and Chair of an intergovernmental expert group charged by the United Nations with determining the extent of the illicit traffic in drugs.

From 1990 to the end of 2013, Prof. Pieth has chaired the OECD Working Group on Bribery in International Business Transactions, also participating in the Wolfsberg AML Banking Initiative as a facilitator. In spring 2004 he was appointed by the UN Secretary General to the Independent Inquiry Committee into the Iraq Oil-for-Food Programme. In autumn 2008, Prof. Pieth was made a member of the Integrity Advisory Board of The World Bank Group (IAB), advising the President of the Bank and the Audit Committee on integrity issues. More recently, in spring 2013, he was appointed as the Chairman of the Sanctions Appeals Board of the African Development Bank (AfDB). He is the founder and Chairman of the Board of the Basel Institute on Governance (BIG). Prof. Pieth has served as an expert witness in several landmark arbitration cases, namely IPOC (ad hoc tribunal) Fraport/Philippines (ICSID) and Piatco/Philippines (ICC).

Within Switzerland, Prof. Pieth has assumed various presidencies and memberships of national commissions, including the Expert Group of the National Research Programme on Violence and Organised Crime, the Federal Commission on Data Protection in the Medical Profession, the Swiss Federal Gaming Commission and the Consultative Commission to the Federal Administration of Finances on the Prevention of Money Laundering. He continues to consult corporations, international organisations and foreign governments on issues related to governance and to publish extensively in the field of economic and organised crime, money laundering, corruption, sanctioning and criminal procedure. He has formerly served as Dean of the Faculty of Law at the University of Basel.