Duties of the First Responder consist of which of the following?

• A. All of above
• B. Detain any witnesses
• C. Document any changes or alterations to the crime scene
• D. Protect the crime scene

Answer: (A)

First responders must secure and preserve the crime scene to prevent contamination and maintain evidence for investigators. Protecting the scene means establishing a boundary, limiting who can enter, and avoiding unnecessary moving or altering of items. Detaining witnesses is included because witnesses can unintentionally change or contaminate evidence through words, actions, or relaying rumors; keeping them away from the scene or directing them to provide statements through proper channels helps preserve integrity. Documenting any changes or alterations to the scene is essential to record the exact condition when responders arrive, including what’s moved, what’s removed, or what actions were taken to render aid. This careful documentation supports the investigation and the chain of custody. When you combine these duties, it’s clear that all of the listed responsibilities work together to maintain the scene’s integrity, which is why all of the above is the best choice.