How to Distinguish Prying and Pressing Marks from Hitting Marks
Tong Dexin · Journal of Liaoning Police Academy · 2009
The acting force of prying and pressing marks is leverage effect which is different from that of hitting marks,impact effect.The feature of prying and pressing marks is two marks after one action and for hitting marks,it is one mark after one action.The prying and pressing marks with the appearance of depressing by detachment and seam expanding are similar to hitting marks.We can distinguish prying and pressing marks from hitting marks on the basis of the shape,number,depth and position of the marks.