@article{ref1, title="A Method for Studying Knife Tool Marks on Bone", journal="Journal of forensic sciences", year="2011", author="Shaw, Kai-Ping and Chung, Ju-Hui and Chung, Fang-Chun and Tseng, Bo-Yuan and Pan, Chih-Hsin and Yang, Kai-Ting and Yang, Chun-Pang", volume="56", number="4", pages="967-971", abstract="The characteristics of knife tool marks retained on hard tissues can be used to outline the shape and angle of a knife. The purpose of this study was to describe such marks on bone tissues that had been chopped with knives. A chopping stage with a gravity accelerator and a fixed bone platform was designed to reconstruct the chopping action. A digital microscope was also used to measure the knife angle (θ) and retained V-shape tool mark angle (ψ) in a pig skull. The κ value (elasticity coefficient; θ/ψ) was derived and recorded after the knife angle (θ) and the accompanied velocity were compared with the proportional impulsive force of the knife and ψ on the bone. The constant impulsive force revealed a correlation between the V-shape tool mark angle (ψ) and the elasticity coefficient (κ). These results describe the tool marks-crucial in the medicolegal investigation-of a knife on hard tissues.

Language: en

", language="en", issn="0022-1198", doi="10.1111/j.1556-4029.2011.01741.x", url="http://dx.doi.org/10.1111/j.1556-4029.2011.01741.x" }