mouth swab test vs. urine test

United States
@kttribal (253)
December 22, 2008 12:54am CST
i hear that it only detects thc in the system for up to four hours. dont you think this will come in handy if there trying to inforce the under the influence policies for driving or are we forever going to have to deal with being completly sober for three to four weeks in order to pass the urine tests that everyone currently uses.