What is the first step to preserve and protect a crime scene?

The first step to preserve and protect a crime scene involves securing the scene. This action is essential for several reasons. Securing the scene helps to prevent contamination, destruction, or alteration of evidence, which can occur if unauthorized individuals enter or interact with the area. By establishing physical barriers, such as tape or personnel stationed at entry points, law enforcement can control access and maintain the integrity of the crime scene.

Once the scene is secure, investigators can then proceed with other critical tasks, such as documenting evidence, performing a walkthrough, or establishing an entry log. However, these actions are only effective if the scene itself is first protected from any potential interference. Therefore, securing the crime scene is a foundational step in the investigative process that ensures the evidence collected is reliable and admissible in court.