The application of chemistry to the study of physical materials or theoretical problems, the results of which may be entered into court as technical evidence. Forensic chemistry is part of the broader field of forensic science. The boundaries of forensic chemistry are not sharply defined, and topics that are not entirely chemical in nature are included. The scope of the analyses performed depends on the criminal, civil, and regulatory statutes of a given jurisdiction. A forensic chemist may be asked to examine debris from a fire scene for the presence of accelerant residues, to determine the species of an imported animal product for ad valorem tax classification, to demonstrate the presence of a narcotic in a pill, or to determine if a certain tool made a scratch on an illegally entered door.