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Take this quiz and explore how crimes are detected by trace evidences left in crime scenes.

Team also lists 48 substances on the Federal Table of Narcotics to fight drug abuse

That sheet. so there may be literally hundreds of items that have to be dna tested. there's more than dna, by the way. there's fingerprint analysis, blood spatter pattern analysis, trace evidence analysis, but with dna if it's successfully done, you may see stains that have a single source mainly from each of the victims, but you may also see mixtures. and mixtures are very, very important because if there are unknown profiles in a mixture, that is something that needs to be followed up on. now there are many people have been in the house that are innocent that have done nothing. they have to ...

But you know there's a holdup, and follow the evidence. i believe strongly in that. that could be a way where the police could turn up the name of the perpetrator here. we know the police have collected at least 113 different items from the crime scene. those items could really multiply, because one single item -- example bloody bedsheet can have multiple stains on that sheet. there may be literally hundreds of items that have to be dna tested. there's more to dna, those fingerprint and analysis, there's blood pattern analysis, those trace evidence analysis. but with the na, if there is succes...

Kim Hakes' body was found the morning of Feb. 15, 2015, in Alan B. Berg Park.