Who has command of a major crime scene according to SOP?

The command of a major crime scene typically lies with the Crime Scene Unit first line supervisor. This individual is specifically trained and designated to oversee the management and investigation of crime scenes, ensuring that all procedures are followed correctly and that evidence is collected and preserved in accordance with standard operating procedures (SOP). This role involves coordinating with other personnel on scene, determining the scope of the investigation, and leading the overall response to the incident.

While a patrol officer may first arrive at the scene, their primary role is to secure the area and ensure public safety, rather than commanding the scene. The sheriff may hold overall jurisdiction or administrative authority within the law enforcement agency but does not handle the day-to-day management of crime scene operations. Similarly, although the lead detective has a vital role in investigating the crime and developing cases, they do not typically assume command of the crime scene itself; that responsibility is placed with the Crime Scene Unit supervisor to maintain the integrity of the scene and the evidence.