In addition to the preceding physical components, at least three methodological and safety issues must be addressed. The first issue involves ensuring that the remains and attendant evidence are secure in the laboratory (Burns, 1999). Because the admissibility in a court of law of the findings of the identification process depends on the maintenance of the chain of evidence, the lab must not be accessible to outsiders. Thus, only qualified workers or visitors in the company of qualified workers should be allowed to enter and view the remains. Also, the lab should be locked whenever personnel are not present, and, ideally, it should have an alarm system. Finally, contamination of skeletal remains (and physical evidence, if present) must be avoided at all costs. The recovered remains must be kept separate from other materials in the lab so that the chain of evidence is not compromised.