• 2016 Transparency International, Germany, and private security industry

    Industrial and political consultancy on the regulation of private security companies

• 2016 Transparency International, Germany

    Constitution of a discussion paper on the regulation of private security companies for the Munich Security Conference 2016 (with junior professor Dr. Andrea Schneiker)

•  2015 European Parliament

    Public Hearing of the EP Security and Defense Committee "The Use of Private Security Companies in the Context of European Security and Defense"

•   2014 United Nations Working Group on Mercenaryism

    Public Hearing on the UN Guidelines on the Use of Private Security Companies

•   2011 European Parliament

    Drafting a report on the use of private security companies in missions of the European Union (with Dr. Cornelius Friesendorf)

•   2010 PRIVWAR project / European Commission

    Advice on the regulation of private security companies in the European Union for a report to the European Commission

•   2010 PRIVWAR project / European Commission

    Advice on the regulation of private security companies in the European Union for a report to the European Commission

•   2006 Swiss Government and the International Committee of the Red Cross

    Advising the "Swiss Government Initiative in Cooperation with the ICRC with regard to Private Military / Security Companies" - Further information at http://www.eda.admin.ch/psc

•     2003 British Ministry of Defense

    Advice in the context of the "Generic Adversaries" project