Forensic Medicine Rigor mois occurs due to: September 2008 A Muscle of the body began to relax B Capillo-venous distension in the most dependent body pas C Muscle of the body began to stiffen D Mummification of the body tissues 💡 Explanation Rigor mois occurs due to: September 2008 ✓ Correct Answer: C. Muscle of the body began to stiffen