The Chemmani mass grave site has today become a focus of public concern in the North and a challenge to the government’s credibility among the Tamil people. After months of excavation and the recovery of more than 580 human skeletons, a report by Sri Lanka’s leading forensic archaeologist, Prof Raj Somadeva, has concluded that the site bears greater similarities to a formal burial ground than to clandestine burial sites with signs of criminal activity and non-conventional burial. The report acknowledges that the available evidence is insufficient to establish conclusively the nature and circumstances of the burials. Its findings, which are markedly different from two previous interim reports by Prof Somadeva have caused dismay among Tamil political parties, civil society organisations and families of the disappeared. Establishing the scientific truth is essential, but so is ensuring that the investigation is seen to be fair, independent and transparent.