Defending DUI Drug Cases: Part 6 from PA DUI attorney Justin J. McShane

Defending DUI Drug Cases: Part 6 from PA DUI attorney Justin J. McShane

Pennsylvania DUI attorney Justin J. McShane, Esq. presents his lecture "Defending DUI Drug Cases" in Hartford, CT in December 2009. In Part 6: "Solid Dose Drug Testing," expert DUI Attorney McShane focuses on solid does drug testing, and explains why gas chromatography is the most accurate drug identification system, but oly if preformed properly. The…

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How do they make the squiggly lines turn into a magic number: Area under the peak

How do they make the squiggly lines turn into a magic number: Area under the peak

One of the aspects of my job that I really enjoy is explaining the science of Blood Alcohol Concentration and/or reported levels of Drugs of Abuse to normal everyday folks, judges, jurors, prosecutors and even fellow attorneys. One of the most common questions I get asked is in the area of gas chromatography. Just yesterday…

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Defending DUI Drug Cases: Part 5 from PA DUI attorney Justin J. McShane

Defending DUI Drug Cases: Part 5 from PA DUI attorney Justin J. McShane

Pennsylvania DUI attorney Justin J. McShane, Esq. presents his lecture “Defending DUI Drug Cases” in Hartford, CT in December 2009. In Part 5: “Drug Testing Overview,” expert DUI Attorney McShane presents an overview the different types of DUI-D testing systems and the shortcomings of each. The McShane Firm is the premier DUI/DWI law firm in…

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Internal standard the likely culprit for inaccurate BAC results

Internal standard the likely culprit for inaccurate BAC results

OK so you followed our recent series on the Carry-Over Effect problem that can lead to inaccurate Blood Alcohol Content results in the posts: A large problem in Gas Chromatography: No uniform standard for GC run position or composition  The Carry-over Effect: Lack of Blanks between tests leads to false positive or inflated BAC results…

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Carryover effect part Deux:  Autodilution may be part of the problem for false blood results in DUI

Carryover effect part Deux: Autodilution may be part of the problem for false blood results in DUI

Just recently I posted "The Carry-over Effect: Lack of Blanks between tests leads to false positive or inflated BAC results" where we discussed the carry-over effect in Blood testing in DUI cases. One of the possible places for carry-over effect is when an auto-pipetter is used in an autodiluter.  Pennsylvania has some labs that in their…

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Defending DUI Drug Cases: Part 4 from PA DUI attorney Justin J. McShane

Defending DUI Drug Cases: Part 4 from PA DUI attorney Justin J. McShane

Pennsylvania DUI attorney Justin J. McShane, Esq. presents his lecture "Defending DUI Drug Cases" in Hartford, CT in December 2009. In Part 4: "Dosage and Drug Response," expert DUI Attorney McShane explains the important roles of both the drug response curve and chronic dose sample error in successfully defending DUI-D cases. The McShane Firm is…

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In analytical chemistry for ETOH and Drugs of Abuse determination, it is very true that the matrix is all around us but truly is ignored

In analytical chemistry for ETOH and Drugs of Abuse determination, it is very true that the matrix is all around us but truly is ignored

Keanu Reeves in the movie The Matrix noted that the matrix is all around us, you just haven’t chosen to see it. He had no idea that his statement would hold true in analytical testing for ETOH and drugs of abuse testing in DUI prosecution as well. The matrix is the substrate form which we…

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