Eight United Nations human rights treaty bodies (UNTBs) can currently examine 'communications' (complaints) from individuals against states. This edited collection is the first in-depth analysis of the evidentiary regimes developed within this procedure. Nine case studies underscore the weak evidentiary basis of the UNTB decisions and the importance of addressing this issue, while the final chapter offers a set of practical recommendations. Grounded in academic research and legal practice, the volume incorporates doctrinal, critical, socio-legal, and anthropological perspectives. It provides an authoritative reference on UNTBs, whilst aiming at contributing to the strengthening of their evidentiary norms and practices. The title is also available open access on Cambridge Core.