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…

read more »

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…

read more »

Justin McShane selected to present a statewide webinar on changes in Pennsylvania DUI law

Attorney Justin McShane has been selected by Lorman Education Services, Incorporated to present a statewide webinar/teleconference to other lawyers and Judges on changes this year in Pennsylvania case law that impacts the DUI lawyer. It is scheduled for July 26, 2010 from 1pm until 230pm EST.  Registration details to follow.  I will assure you that…

read more »

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…

read more »

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…

read more »

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…

read more »

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…

read more »

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…

read more »