Question

what comes third? a - arrest the perpetrator a - assess the crime scene d - detain the witness(es) p - protect the crime scene

Explanation:

In crime - scene management, the first step is usually to protect the crime scene to preserve evidence. The second step could be to assess the crime scene to understand what has occurred. Detaining witnesses is not typically one of the first steps. Arresting the perpetrator is usually one of the later steps after evidence has been gathered and the suspect has been identified. So, after protecting and assessing the crime scene, detaining witnesses may be a subsequent step.

Answer:

D - Detain the Witness(es)