You would have to shave your whole body then. People that wear their hair short, ie ex-military/cops..., they takes samples from other parts of the body. They'll shave a patch of your leg hair or arm hair. The thing about that is, body hair grows significantly slower then scalp hair so they can detect drug use even further back....Originally Posted by texasmk4
They need a minimum of 1" length hair for the sample but prefer 1.5" so...
Scalp hair usually grows at around a rate of 1cm/month, so 1.5" would only show use from about the last 3months
Body hair can grow as slow as a few Millimeters a month so 1" long body hair can be used to detect drug use for 9+ months
Marinos, Thanks for finding that. I was too lazy to search for those articles yesterday. Good find though. Basically they can detect any substance taken into the body. Hair testing isn't allowed in all states though.
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