Crime scenes - They are responsible for protecting the crime scene from evidence of all forms of destruction. Their role is to follow the correct procedure to gather evidence - they must use the camera to record evidence before they can collect evidence. Samples are in protective packaging. The evidence of casting such as tire marks and foot prints must be done in the same procedure as taking an image and then making an outer casing. Forensic pathologists - they are responsible for necropsy and determination of the cause of death.
Procedures at the digital crime scene include: • Secure crime scene safety. • Keep the evidence. • Establish a chain of custody. • Confirm evidence. Ensuring crime scene safety The crime scene is the most important aspect of evidence collection and preservation. The crime scene is defined as "the place where the crime occurred (or any other place where evidence of crime could be found)". The area including Whiting is based mainly on the fiber connecting the girl and Whiting van. Matching of the material in this case is very important for this case and linking the girl with Whiting leads to conviction (the main finding of major forensic findings in Sarah case, 2001). Houck & Siegel (2006, p. 57) is also important to prevent contamination.
Criminal investigators have various responsibilities at crime scenes. They walk around the crime scene, find the evidence, and gather it in a very concrete way to protect it from contamination. CSI can take pictures of the scene or sketch for entertainment or courtroom presentation later. Evidence that CSI may collect on crime scenes includes fingerprints, body fluids, weapons and so on. When an inspector gathers evidence, he or she also catalogs them as they are transferred to the laboratory. Investigators must also present their findings to others in their teams, lawyers, and in many cases trials. The investigator's work schedule may vary. Because crime never sleeps, working at night or on holidays is very common.