• June - July 2011 - World Customs Organization: audit mission in Niger Customs for the elaboration of an IT strategy in the framework of phase 2 of the COLOMBUS program (with Mr. Bernard Zbinden);
• October 2008 and November 2010 - World Customs Organization (Capacity Building Committee) and World Bank (Washington DC): Presentation of the Service Delivery Control and Performance Contract Testing Policy (with Ms. the Customs DG of Cameroon);
• April 2008 - French Cooperation: Exchange mission with French Customs on risk management;
• September 2008 - World Bank (Washington DC): presentation of the Cameroon experience in monitoring the execution of the service (with the Cameroon Customs DG and Thomas Cantens, Technical Adviser).

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