Forensic science is the application of science to criminal and civil laws as well as industrial accidents, as governed by the legal standards of admissible evidence and criminal procedure. Forensic scientists collect, preserve, and analyze scientific evidence during the course of an investigation. In the past decade, documenting forensics scenes has become more efficient. Forensic scientists have started using drones and hyperspectral imaging to obtain high resolution chemical imaging of crime scenes and industrial accidents. Forensic aerial photography is the study and interpretation of aerial photographic evidence. Forensic chemistry is the study of detection and identification of illicit drugs, accelerants used in arson cases, explosive and gunshot residue. Trace evidence analysis is the analysis and comparison of trace evidence including identification of illicit drugs, counterfeit materials, unknown chemicals, and explosives, as well as characterization of inks, paints, fibers, and hair.