Self-Regulating Butchers and Police Officers

Pennsylvania residents don’t trust self-regulating butchers, so why do they trust self-regulating police officers and technicians? I came across an article about self-regulation that I would like to share: Pennsylvania mulls handing weights and measures inspection to private sector When consumers get a bad meal, they know it. But getting shortchanged on a few ounces of […]

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Personal bias is bad, but analytical bias spells disaster in DUI BAC and Drugs of Abuse testing

All analytical devices are subject to analytical drift. Analytical drift occurs during as a result of just good old fashioned use or over time even with a lack of use. As the machine is used time and time again, it will become less precise and/or less accurate. Accuracy is characterized by large standard deviation with […]

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