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Nanotechnology is the study of the control of matter of an atomic and molecular scale. At present the most widespread forensic application of micro fluidic systems is post-polymerase chain reaction (PCR) quantization. These systems are currently being used in several forensic laboratories to perform post-PCR quantification of mitochondrial DNA. Another innovation relates to assisting in solving gun crime. Using a nanoscale developer and an X-ray source, it is possible to image the etched fingerprints even if the casing has been wiped or washed. This technology is going to revolutionize the fields of virtopsy, crime scene investigation, identification, forensic ballistics, and toxicology.