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. Europol and Eurojust provide support to the Network and the experts in their work.

The Network as yet has no secretariat of its own, but Eurojust, Europol and the Council Secretariat provide support.