Leakage of tax and customs resources in Cameroon is possible, both due to billing fraud, and the misuse of tax agreements and benefits, are among others the different forms of Illicit Financial Flows (IFF), underlines the consultant Idriss Linge During the pre-validation workshop of the report of the study he conducted on IFFs in commercial exchanges in Cameroon at CICM, Mvolyé / Yaoundé, this August 18, 2020.