Say there's been a crime and the only clue is an unknown substance so they send it to forensics to be examined. What techniques do they use to identify it?
NMR and mass spectrography, sure, why wouldn't they. Mass spectrography with a gas cromatograph would work well for small sample sizes and yield pretty definitive results.
I'm pretty sure they also have a load of quicker or more specialised tests for common forensics substances like blood, cocaine, etc. But I've never been within 500 feet of a real crime lab.
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Anonymous2009-09-06 4:05
look at it under a microscope
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Anonymous2009-09-28 21:21
They smell and taste it, obviously.
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Anonymous2009-09-29 6:30
why would a chess computer be used to simulate bacterium?
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Anonymous2011-03-20 23:14
TSUNAMI
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Anonymous2013-10-03 23:19
Dutch police recruit rats
ROTTERDAM - The latest species to join Dutch police is hard at work behind the blacked-out windows of a building in Rotterdam: rats learning to sniff out crime and a new forensic future.
Derrick, Thomson and Thompson, Magnum and Poirot - all named after fictional detectives - are being groomed to help police to not only keep the streets clean, but also save time and money.
Each rat cost just €10 and can, in theory, be taught to identify any odour, from drugs to gunpowder. A sniffer dog, on the other hand, costs tens of thousands of euros to buy and train.