The ICC judicial system has changed over the years. In this perspective, we should wonder which are the tools used by the ICC to build trust and justice in the field of cultural heritage. Mainly, the safeguard of cultural heritage challenges the trust on ICC’s system when claims on statehood and state building processes occur (Kosovo and Palestine), thus limiting the interaction between states and the ICC’s powers. Both the cases have common claims on statehood, an undefined/instabile legal framework, contested cultural heritage, and limited access to the ICC jurisdiction. Furthermore, cultural heritage is both an additional value but also an element that challenges the public trust on national authorities and International judicial authorities. How can contested cultural heritage be used as a tool to boost the transparency of the ICC and the trust on its system? What are the challenges to the ICC’s system for the protection of cultural heritage in areas of contested sovereignty?