Who typically conducts a preliminary investigation at a crime scene?

The preliminary investigation at a crime scene is typically conducted by the first officer who arrives on the scene. This officer plays a crucial role in securing the area, ensuring that evidence is preserved, and beginning the process of documentation. Their immediate actions will set the stage for the subsequent investigation.

The first officer is responsible for assessing the scene, determining if there are any victims in need of medical attention, and preventing any unauthorized individuals from entering the area. They must gather initial statements from witnesses and victims while also logging any pertinent information that may be critical for detectives later on. The effectiveness of this first response can significantly impact the success of the investigation that follows.