Bullet Runs Through It

One of the suspects was shot 4 times but later in the episode only 3 bullets were present
When an officer was shot, he acted like he was injured to the chest when there in fact was no bullet in his chest--it was in his neck
Suspect seriously injured a young boy and stole his bike--searching for suspect on a bike
They analyzed the scene of bullets with the wooden dowels
The police and CSI investigators were required to immeadiatly give a testimony of what happened in the gun fight