When the first body falls out of the casket. He lands face down on the ground. And as the second body begins falling out of the casket. The first body is still face down on the ground. But when the second body is shown landing on the ground the first body is not face up.
If a suspect (Warrick) is found standing over a dead body (Gedda), that person is handcuffed and put into a police car. They are not left on their knees by the body at the crime scene until a CSI member (Grissom) gets there.