What is a common method for securing a crime scene?

A common method for securing a crime scene is setting up barriers to control access. This practice is essential for preserving evidence and preventing contamination. Barriers, such as cones, fences, or police tape, help ensure that only authorized personnel enter the scene, which is crucial for maintaining the integrity of the investigation. By controlling access, investigators can limit the risk of evidence being altered or destroyed, which is vital for a successful case.

While using tape to mark the perimeter and posting police officers at the entrance can also contribute to security, they serve more as supplementary measures in conjunction with physical barriers. Allowing the public to view the scene directly undermines the investigation and could compromise crucial evidence, so it is not a legitimate method for securing a crime scene.