A Crime Scene Technician is a professional who plays a crucial role in the investigation of crimes. They are responsible for collecting, preserving, and documenting evidence from crime scenes, such as fingerprints, blood samples, and other physical materials. Their work helps law enforcement agencies understand what happened during a crime and can be vital in solving cases. These technicians often work closely with police officers, forensic scientists, and detectives to ensure that evidence is handled properly and remains uncontaminated. They may also be called to testify in court about the evidence they collected and the methods used during the investigation.