Violent contact between individuals at a crime scene frequenters produces bleeding and results in the information of

formation of a clot

Explanation:

Violent contact between individuals at a crime scene leads to bleeding.

The body responds to the bleeding by forming a blood clot.

The formation of the clot is known as blood coagulation.

The coagulation process is induced to reduce the amount of blood lost by the body in the event of injury.

The clot seals the opening at the injury thereby stopping blood loss.