system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient committed suicide by shooting a bullet into his right temple. On post-moem examination, the skull was burst open. There was charring and cherry red discoloration along the track of bullet and the weapon was firmly clasped in the right hand of deceased. The bullet was fired from what distance
assistant
The correct answer is  Ans. a. Contact shot In a contact shot, the discharge from the muzzle, consisting of flame, powder grains, metallic paicles, and hot gases are blown into the track of the bullet. This leads to charring of the track inside and pink coloration owing to formation of carboxyhemoglobin. Gases entering the track in a contact shot are under high pressure, which may lead to 'bursting fracture' of skull