It may sound like something out of a horror movie, but a knife-wielding robot could help forensic investigators learn more about an attack. Researchers have developed a'stabbing robot' that offers at least 60 possible stabbing positions and an interchangeable knife holder that allows for a range of stabbing implements to be analyzed by experts. The technology will assist investigators in understanding the type of knife, angle of the attack and stabbing technique used just by looking at the tears and distortions in the fabric around a wound. Researchers have developed a'stabbing robot' that offers at least 60 possible stabbing positions and an interchangeable knife holder that allows for a range of stabbing implements to be analyzed by experts The knife-wielding robot consists of a motorized arm with a pneumatic system designed to deliver 60 unique stabbing positions. A pneumatic system is a type of engineering that uses gas or pressurized air, which the team implemented power the stabbing arm.