Dr. Andra Lewis has professional experience in the areas of crime scene investigation, trace evidence analysis and teaching within the forensic science discipline, both as a lecturer and as a doctoral teaching fellow.  Andra previously worked as a crime scene investigator and supervisor at the Dallas Police Department, helping the crime scene section receive their first ASCLD/LAB accreditation.  After many years as a practitioner, Andra enrolled in a doctoral program at Sam Houston State University, earning a Ph.D. in Forensic Science in 2023. Her dissertation was in the area of trace evidence and was on the evaluation of the combined use of UV-Vis microspectrophotometry and plane-polarized microscopy for the forensic examination and discrimination of textile fibers.  She is a member of the American Academy of Forensic Sciences, the Association for Trace Evidence Examiners, and the International Association for Identification, as well as an affiliate of OSAC on the Trace Materials committee, hair and fibers subcommittee.