Quote Originally Posted by Rocketman View Post
Colorado Law Enforcement Drug Recognition Experts (DREs)

Drug Recognition Experts (DREs) are law enforcement officers who are highly trained to recognize
impairment in drivers under the influence of drugs, and to identify which category of drug is causing
the impairment.
The number of certified DREs has risen from 86 in 2005 to 173 as of July 1, 2011. There are expected to
be over 190 DREs statewide by the end of 2011.
From 2005 to 2010, the number of evaluations conducted by DREs each year has nearly doubled, from
465 (2005) to 910 (2010).
o 2005 465
o 2006 511
o 2007 668
o 2008 729
o 2009 810
o 2010 -- 910
On average, between 2005 and 2010, roughly 58% of all DRE evaluations came up with a result of
marijuana as a drug involved.
From 2009 (391) to 2010 (599), there was a 35% increase in the number of DRE evaluation that came
up with a result of marijuana as a drug involved.
o 2005 300
o 2006 304
o 2007 335
o 2008429
o 2009 391
o 2010 - 599

http://www.coloradodot.info/programs...heet082011.pdf

Let me see . . .

year % of evaluations determined to be THC


[list]
[*] 2005 64.5%[*] 2006 59.5%[*] 2007 50.1%[*] 2008 58.8%[*] 2009 48.3%[*] 2010 65.8%

I do not know what happened to make the spike at 2010 but I suspect that it was an emphasis on focusing on marijuana due to the legalization. These statistics are nearly worthless since we do not have info confirming this with a test that positively determines if a subject is under the influence by THC.