A head injury is any injury that results in trauma to the skull or brain. The terms traumatic brain injury and head injury are often used interchangeably in the medical literature. All fatal head injury cases subjected for medico-legal autopsy to the Dept of Forensic Medicine, Adichunchanagiri Institute of Medical Sciences, where prior CT Head scan was taken during hospitalization. In the present study, the vulnerable age group was those in the 21-30 years (18 cases) followed by age group of < 20 years (8 cases). In the present study, 26 cases were due to RTA injury and remaining 4 cases were due to fall and assault respectively. In the present study, Of the 30 cases, scalp injuries were noted in 22 cases at autopsy where as CT reported scalp injury in only 28 cases. Of the 30 cases, in 28 cases skull fractures were observed at autopsy but in 30 cases the same was commented upon in the CT scan. It was observed that combination of CT scan findings and autopsy findings is a useful tool for the diagnosis of various kinds of lesions of head injury and thus helps in formulating better policies.