Crime scene tape is a bright, often yellow or orange tape used by law enforcement to secure a crime scene. It serves to keep unauthorized individuals away from the area where a crime has occurred, preserving evidence for investigation. The tape typically features the words "CRIME SCENE DO NOT CROSS" to clearly indicate the restricted area. This tape is an essential tool in criminal investigations, as it helps maintain the integrity of the scene. By preventing contamination or tampering, crime scene tape ensures that forensic experts can collect and analyze evidence accurately, which is crucial for solving the case.