Okay, someone has mentioned CSI so now I can ask my burning question... although I should say I don't watch it often, when I do I am mesmerised by a particular facet of this and many similar US shows that revolve around forensic science. The CSI guys have, allegedly, every technological gizmo known to man, they have translucent computer-based control screens to write on, they have laser beams, microscopes, and analytical tools previously seen only on Star Trek. And yet... when the scientists and/or detectives turn up at a crime scene they may pull on a pair of latex gloves but otherwise they walk right in, they move from room to room, they lift bodies, parts of bodies, and cats lying on the bodies. They take samples for later analysis and oh so many photographs, but why does nobody scream "you're contaminating the scene of the crime?!" In a UK drama, such as
Silent Witness the forensic pathologists dress head to toe in sterile overalls, they wear masks, gloves, and overshoes and like the police they don't set foot in the house/on the towpath/in the garage where the dead body is until and unless they can't spread contamination - their own hair, DNA, etc. In a show where everyone's hair is sprayed stiff as a floorboard, why can't they follow procedures governing the rules of evidence? It bugs me. It makes it seem unrealistic. And it means I can't watch without screaming!
