It depends on what your definition of “positive” is? TLC in marijuana testing

It depends on what your definition of “positive” is? TLC in marijuana testing

Like Bill Clinton’s famous re-framing of the issue in this video: It depends on what your definition of “positive” is? TLC in marijuana testing We have posted here before about the Thorton-Nakumura protocol that is used throughout the United States for the prosecution of illegal possession of marijuana (in its solid drug dose pre-consumption form). […]

Even the government acknowledges the difficulty of proving impairment in a DUID case

Even the government acknowledges the difficulty of proving impairment in a DUID case

Even the government continues to acknowledge the difficulty of proving impairment in a DUID case. Just a day ago…. NHTSA’s Understanding the Limitations of Drug Test Information, Reporting, and Testing Practices in Fatal Crashes by Amy Berning & Dereece D. Smither was released. This recent publication reads as follows: In addition, while the impairing effects […]

What does reprocessing mean on a chromatogram?

What does reprocessing mean on a chromatogram?

What does reprocessing mean on a chromatogram? Reprocessing of the data generally means that after the data is acquired, the chromatograms are subjected to some sort of manipulation, meaning data processing. I know that to defense attorneys that when they read the word “manipulation” that is like nails on a chalk board to them inherently. […]

What else smells like marijuana? Is “smells like marijuana” a valid perception by police?

What else smells like marijuana? Is “smells like marijuana” a valid perception by police?

Judge: “What else smells like marijuana, counsel?” Attorney: “Is ‘smells like marijuana’ a valid perception by police?” The problem is that “smells like marijuana” reports are entirely an unverifiable subjective opinion. It is unverifiable because even if marijuana is found that might be a function of random chance as opposed to olfactory detection. Smell is […]

CODIS, NDIS, SDIS, Familial Searching (Partial Match and moderate stringency) and Arrestee and Offender Database Searches versus expungment

CODIS, NDIS, SDIS, Familial Searching (Partial Match and moderate stringency) and Arrestee and Offender Database Searches versus expungment

Are results expunged from the CODIS or SDIS databases and why should I care one way or another? Maybe you are like me. I like it when crimes are solved. I like it when the true perpetrator is arrested, fairly tried and convicted. I like that there are prisons to house the truly dangerous. But […]

210 Graduates in 40 states: Congratulations to the Graduates of ACS Gas Chromatography 12

210 Graduates in 40 states: Congratulations to the Graduates of ACS Gas Chromatography 12

Congratulations to the graduates of the 12th class of the American Chemical Society Hands-on Gas Chromatography class. This makes for 210 graduates in 40 states.   Today’s graduates include: First name Last Name State Tim Bussey CO Gregory Willis GA Thomas Addair KS John Thurston KS Barton Morris MI Neil Rockind MI Steven Hernandez NJ […]

The myth of “therapuetic range,” “cookie cutter pharmacology,” and why DUID Impairment cases remind me of Forrest Gump

The myth of “therapuetic range,” “cookie cutter pharmacology,” and why DUID Impairment cases remind me of Forrest Gump

There is a myth among prosecutors, defense attorneys and judges that is propagated time and again all over courtrooms in the US that involves the idea of “therapeutic ranges” when it comes to DUID cases and prescribed drugs. The notion is that there is a one-size fits all chart that we can all refer to […]

The Forensic Science of IMSI/TMSI catchers: Stingray, Gossamer, FishHawk, Porpoise, and others

The Forensic Science of IMSI/TMSI catchers: Stingray, Gossamer, FishHawk, Porpoise, and others

“Just because you’re paranoid doesn’t mean that there isn’t somebody watching you” That is a truism in this day and age. There has been much publicity about the Edward Snowden revelations and NSA’s PRISM and the Boundless Information programs. It has invited a lot of useful and needed public and private debate in the role […]

Justice, the Queen of Virtues? or Validation and Quality Assurance, the Queen of Virtues: Columbia South Carolina Police Department Crime Lab

Justice, the Queen of Virtues? or Validation and Quality Assurance, the Queen of Virtues: Columbia South Carolina Police Department Crime Lab

Justice, the Queen of Virtues? or Validation and Quality Assurance, the Queen of Virtues: Columbia South Carolina Police Department Crime Lab It is perhaps ironic that Columbia, South Carolina’s police department’s patch boldly states the city’s motto: “Justitia virtutum regina” which translates to “Justice, the Queen of Virtues.” Is there justice when people are wrongly […]