The CSI effect: DNA

TV shows like CSI have made forensic science accesible to everybody. Thanks to this knowledge, criminals increasingly try to get away with their crimes by tampering with the evidence.

In this videoforensic pathologist Richard Shepherd recalls how one murderer tried to destroy DNA evidence:

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I had one case where the had been cut because they were clearly aware that we could extract from underneath the fingernails.
In that particular case, her undressed her, put her back into , wrote a note with a particular on it, left it in the house, and had throughout the house what was effectively a false .
So a lot of effort had gone into constructing a false scene and it took a lot of time to what was at first a reasonably obvious .


Adapted fromhttp://www.bbc.co.uk/sn/tvradio/programmes/horizon/broadband/index.shtml
(CC) Carmen López Jiménez 2008 || Back to Bloggin' away