On 5 October 2023, Europol joined the Joint Investigation Team (JIT) agreement on alleged core international crimes committed in Ukraine. Europol will provide analytical and forensic support, offer expertise gathered through its Analytical Project on Core International Crimes (AP CIC), and contribute analysis gathered from OSINT data (Open Source Intelligence).

The JIT was first signed on 25 March 2022 by Lithuania, Poland, and Ukraine; Estonia, Latvia, Slovakia, and Romania soon followed suit. The International Criminal Court (ICC) and the United States Department of Justice have also become participants (→eucrim news of 5 May 2023).