Discussion 9 - At many crime scenes, by the time you arrive

D9

At many crime scenes, by the time you arrive, the scene has already been disturbed by first responders, law enforcement, or witnesses who have walked into your crime scene. How can you protect your crime scene? How do you differentiate between footwear impressions that are evidence and footwear impressions that are artifacts from first responders? What legal and ethical considerations impact how you process the crime scene and how you handle these challenges?