Deficiencies of CIB's shooting experiment

There are clear deficiencies in the CIB shooting experiment:

(1)

The most obvious is that they based their conclusion on just three valid shots. With only three data points, how confident can one be with such result, and how does one extract any meaningful statistical information from a sample of three?

(2)

The CIB did not use the same fabric as Chen's custom-made shirt. So their experiment provided little information concerning the possible damage pattern to the clothing.

(3)

The pig skin used by CIB was taken from butchered animals. It is much tougher than human abdominal skin, therefore not suitable as a skin simulant. Live piglets under anesthesia are better skin simulants for human skin for the purpose of reconstructing graze wounds.⁷⁰

(4)

As tissue simulant, 10% ordnance gelatin at $4\tccentigrade$ and ballistic soap are superior to pig skin. See [SK, pp. 188-214] for discussion about tissue simulants.

(5)

The CIB used paper board to observe yawing and tumbling of the bullet. The paper board tends to increase the yaw. A high speed camera is a more useful instrument for studying the yawing and tumbling of a bullet.

Notice that the CIB did not cite any literature to support the $20\ {\rm J}/{\rm cm}^2$ ``practical wounding criterion''⁷¹they use. The CIB only said that the same criterion was used by the Japanese police.