To combat financial and undermining crime (like tax crime, corruption, money laundering, terrorism financing etc.) effective international cooperation between national services, tax administrations and law enforcement, that deal with this type of crime is crucial. At the same time, the need to ensure the autonomy of these Financial Criminal Investigation Services (FCISs) and the privacy of (innocent) citizens is essential. Thus, FCISs need to be able to analyse data together and identify relevant information without unauthorised violation of privacy or autonomy.

A best practise, and a source of inspiration, for this type of international cooperation has already been effective for more than ten years between the 28 Financial Intelligence Units of the European Union through their decentralised computer network. Their proven technology and the need for such a network between FCISs was presented and acknowledged at the Organisation for Economic Co-operation Development (OECD) conference in September 2015. The proposal for starting a project to set up the Financial Criminal Investigation network (FCInet) was embraced. The Dutch Fiscal Information and Investigation Service (FIOD) and the British HM Revenue and Customs (HMRC) agreed to both lead and develop this new capability. An FCInet Secretariat was set up in the Netherlands within the FIOD to execute the activities. Hence end 2016 FCInet was born.