What action should peace officers take first upon entering a scene?

The first action peace officers should take upon entering a scene is to identify and locate all parties present. This step is crucial because it allows officers to assess the situation's dynamics and understand who is involved, which can impact the safety of everyone at the scene. By locating and identifying all individuals, officers can ensure that they are aware of potential witnesses, victims, and suspects, which is essential for gathering information and determining the appropriate response.

Understanding the parties present also aids in establishing a command presence and managing the scene effectively. This initial assessment helps in gathering intel on the unfolding situation and determining whether immediate intervention is needed for safety or to prevent the destruction of evidence.

Documenting the scene, calling for backup, or searching for evidence are all important actions, but they usually come after the initial identification of parties involved. Engaging with individuals present allows officers to gain a clearer picture of the context and prioritize their actions accordingly.