Expect a lot more DUI's in the future
http://www.thenewstribune.com/2014/11/28/3513737_breath-test-to-detect-pot-is-being.html?sp=/99/296/331/&rh=1
A team at Washington State University is working to develop a
breath test that could quickly determine whether a driver is under the
influence of marijuana.
Law enforcement officers already use
preliminary breath tests in the field to estimate drivers’ blood alcohol
content. But no similar portable tool exists to test for marijuana
impairment via a breath sample.
Stoned drivers have become an
increasing concern since Washington voters legalized recreational use of
marijuana in 2012. A quarter of blood samples taken from drivers in
2013, the first full year the initiative was in effect, came back
positive for pot.
WSU chemistry professor Herbert Hill said that
existing technologies — including those already used by airport security
and customs agents to detect drugs and explosives — can be re-purposed
to test breath for THC, the psychoactive component of marijuana.
Hill
said he and WSU doctoral student Jessica Tufariello are working on a
handheld device that uses a technique called ion mobility spectrometry
to detect THC in someone’s breath.
Right now, officers and
prosecutors rely on blood tests to determine how much active THC is
present in a driver’s blood. Those test results aren’t immediately
available to patrol officers who suspect someone is driving high.
<snip>
Read
more here:
http://www.thenewstribune.com/2014/11/28/3513737_breath-test-to-detect-pot-is-being.html?sp=/99/296/331/&rh=1#storylink=cpy