For any evidence to be admitted into a court of law, it must have been legally obtained with collection, transport, and storage methods documented. A chain of custody form must be attached to all pieces of physical evidence. This form must account for the evidence from the time of collection to the time of testing and must include the names of all individuals who handled the evidence. During courtroom proceedings, the form must show that only appropriate individuals had access to the evidence, that the evidence was not tampered with, and that the evidence was stored properly, preventing degradation of the specimen..