UN Security Council
2017

internet, or in conflict zones, in order to ensure foreign terrorist fighters who have 8/13 17-23112 S/RES/2396 (2017) committed crimes, including those returning and relocating to a nd from the conflict zone, may be prosecuted; 21. Encourages enhancing Member State cooperation with the private sector, in accordance with applicable law, especially with information communication technology companies, in gathering digital data and evid ence in cases related to terrorism and foreign terrorist fighters; 22. Calls upon Member States to improve international, regional, and sub regional cooperation, if appropriate through multilateral and bilateral agreements, to prevent the undetected travel of foreign terrorist fighters from or through their territories, especially returning and relocating foreign terrorist fighters, including through increased sharing of information for the purpose of identifying foreign terrorist fighters, the sharing and adoption of best practices, and improved understanding of the patterns of travel by foreign terrorist fighters and their families, and for Member States to act cooperatively when taking national measures to prevent terrorists from exploiting technology, communications and resources to support