You Are Caring for One of Three People Involved in a Stabbing

You are caring for one of three people involved in a stabbing incident at a local bar. You move your patient into the back of the ambulance and begin care. Prior to leaving the scene, you find a knife in the patient's pocket. How should you proceed?

A) Bag the knife and take it to the hospital.
B) Place the knife in a belongings bag along with the patient's other personal effects.
C) Ask you partner to get a law enforcement officer and have the officer retrieve the knife.
D) Ask the patient if the knife was used during the incident.