This document discusses the application of photography in law enforcement, specifically for crime scene documentation. It outlines that crime scene photography serves as a permanent record of the scene and is indispensable for presenting evidence in court. The document then covers the uses of photographic evidence, including identification of subjects, preservation of evidence, describing the scene, and substituting for physical evidence. It also discusses the legal implications, admissibility requirements, and categorization of photographic evidence. Overall, the document provides guidance on proper crime scene photography techniques and standards for using photos as evidence in court.