Article from US Pharmacist that addresses potential false-positives and false-negatives in urine screens.
Toxicology
Local blood lab expected to speed up DWI court cases
Toxicology Testing by NMS Labs – FAQ
Many attorneys have asked us about blood-drug (and some blood-drug and alcohol) testing performed by NMS Labs. We have compiled the questions and our answers here. If you have additional questions, please post them in the comments and we will try to answer them as well. Let’s make this a living document! The toxicology evidence …
First came the Breathalyzer, now meet the roadside police “textalyzer”
Crime lab analysts made same mistake 3 times in DWI cases (TX)
The Marijuana Breathalyzer’s Uncertain Future
High On The Highway: Scientists Try To Build A Marijuana Breath Test
Driving While Stoned: New Breathalyzer Device Sniffs Out Marijuana
‘Driving while baked’: New marijuana breath test device to detect levels of THC
The science behind forensic toxicology
Reliability Concerns Regarding Probation Drug Screens
The NC Department of Public Safety (DPS) has begun relying on less accurate presumptive testing for urine screens for drugs for probation, prison, and DSS cases. The focus of this post will be probation cases, though the testing is the same for prison and DSS cases. Testing Prior to 2014 Until February 2014, the Department …
Reliability Concerns Regarding Probation Drug ScreensRead More