We all have to cope with tragedy in our lives, but it's hard to imagine on a scale of the 2004 tsunami in the Indian Ocean, and few of us ever encounter the dark results of violent crime. Fuzzy listeners will be well aware that shows like CSI don't really describe what foresnic scientists do, but here's someone to tell you first hand.

Dr James Robertson is director of National Centre for Foresnics Studies, and has been guest on ABC Catalyst program.

Also, why would you strip naked, don a hair net, and cover yourself with vaseline? Some sort of sexual gratification, or the perfect crime?

Hosted by Rod and Broderick.

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