I don't know if anyone has suggested this or not but after some research I came across this and it made me wonder.....Maybe it is possible that hair has been found at either crime scene or car and it is suspected to belong to a relative of GBC?
Maybe this relative (we all suspect who) has refused to give DNA sample so they are trying to match GBC's to verify that the hair belonged to a relative of his?
I know it could be a long shot but who knows it might be a possibility:waitasec:...Really interested to find out why hair sample is all they wanted and not blood or saliva?
It is making me Crazy with curiosity?
http://www.webmd.com/skin-problems-and-treatments/hair-loss/hair-analysis
Hair analysis can be used to check if people are blood relatives. Forensic hair analysis can be done to help identify a criminal by evaluating hair structure and DNA. Hair samples are tested with specific chemicals and looked at under a microscope. Hair analysis can also be used to check for poisoning caused by metals such as lead or mercury. But hair analysis alone usually is not used for this type of testing.