Forensic photography (sometimes referred to as forensic imaging or crime scene photography) is the art of producing an accurate reproduction of a crime scene or an accident scene for the benefit of a court or to aid in the investigation. It is part of the process of evidence collecting. It provides investigators with photos of bodies, places and items involved in the crime. Pictures of accidents show broken machinery, or a car crash, and so on. Photography of this kind involves choosing correct lighting, accurate angling of lenses, and a collection of different viewpoints. Scales are often used in the picture so that dimensions of items are recorded on the image.