Objective To research the shapes and causes of the injuries caused by a hammer on a human skull and analyze and deduce the object causing the death in the case.

The injury mechanism was then classified according to beating direction, sequence, as well as baring spot of injury, which is seek to serve for the estimation of wounding instruments and determination of the character of case.

Epidemiologic Charcter Analysis of Animals Attacking Human in Baoan Shenzhen;

The Children Animal Wounds the Secure Question and Prevents Countermeasure;