A Network of National Experts on Joint Investigation Teams (JITs) was established in July 2005. The Network, consisting of at least one expert per Member State, promotes the use of JITs by helping to facilitate the setting up of the teams, assisting in the sharing of experiences and best practice, and dealing with legal considerations. The experts assist practitioners in the Member States with setting up JITs. They communicate with each other to help facilitate setting up JITs.

Over the years, the General Secretariat of the Council of the EU, Europol and Eurojust provided support to the Network of National Experts on Joint Investigations Teams (JITs Network).

Since mid-January 2011 the JITs Network has a Secretariat of its own to promote the activities of the Network and to support the National Experts in their work.