Scientific evidence, including fingerprints, dental profiles, DNA technology including DNA fingerprinting and the use of DNA to identify key chracteristics of a criminal such as eye colour, ethnicity and sex, is one of the most important determinants of the outcome of a criminal investigation. DCI Tom Harper, from Essex Police, talks about how these techniques work and their potential constraints. http://nakeddiscovery.com/scripts/mp3s/audio/Listen Now
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