Forensic botany is an under-utilized resource that can provide investigative leads or convincing evidence relating to a variety of criminal investigations. The identification of plant material can be used to place a suspect or victim at a crime scene, demonstrate association with narcotic-related plants, or infer a geographical location. The Bode Technology Group provides DNA analysis of botanical trace evidence, and has developed a method to extract, clone and sequence DNA of specific plant loci from single plants or mixtures of plant material. We have validated this technique and used it since 1999 on plant mixtures obtained from particulate material associated with clothing, carpet, packaging, video tapes, air filters and soil.