A routine rape case that became tricky (and educational)

After attending this presentation, attendees will understand why it is important to listen to the victim and relatives, who do not fully understand the objective DNA evidence, but who point in a relevant direction relating to procedural failures of police and crime labs.

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2011-07 AIR: Criminal Investigator on Lint

Lint balls from navels (navel fluff, belly button fluff) won an Ig Nobel Prize in 2002 for Karl Kruszelnicki. Dr. Kruszelnicki worked on observations reported in a survey of 4799 lint-collecting people, rather than on tons (I use that word here metaphorically) of individual balls from a single person.

I am a forensic investigator, with a new (to me, I mean) interest in lint. I mentioned this during a radio program. A few weeks later, a young couple (Elisabeth and Jan from Dresden) approached me after a public lecture and handed me a full collection of lint balls collected exclusively from their own navels. This allowed me to examine 167 lint balls from two persons instead of many different lint balls from a large number of people.

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