What does it mean to be NIST traceable?

What does it mean to be NIST traceable?

What does it mean to be NIST traceable? By Janine Arviszu, Certified Quality Auditor [Editor’s note: Too frequently in forensic science, laboratories or laboratory personnel claim that their process or even their whole laboratory is “NIST traceable” as if to act as a shield to ward off external validation. In this article expert witness Janine […]

Kudos to Texas State Fire Marshal Chris Connealy

Kudos to Texas State Fire Marshal Chris Connealy

From Grits for Breakfast (which is a wonderful blog): Kudos to Texas State Fire Marshal Chris Connealy for doing the right thing.   Pecos DA challenges state fire marshal review of junk science in arson cases A West Texas DA has sought an Attorney General’s opinion seeking to stop the State Fire Marshal from reviewing […]

GC-MS false positives

GC-MS false positives

GC-MS false positives happen in drug testing As we blogged before, both in Stereoselectivity matters in methamphetamine: The Science of Breaking Bad cook makes both D and L forms of meth and in GC-MS is not perfect: The case study of methamphetamine there is a large issue in the ability of the Gas Chromatography with Mass […]