In Pennsylvania DUI cases and in Pennsylvania DUI prosecutions, there is always the possibility of error by anyone from police officers to technical supervisors to toxicologists to forensic scientists to breath test operators to blood test operators to eyewitnesses to judges and even Juries.  It is important for all of us to try to identify these potential sources of error and examine them with the stated goal to try to minimize or eliminate these possible sources of error. 

The below schematic is a useful way of identifying these possible sources of error. 

Before we start to entertain the possibility of convicting anyone, should we not identify these sources of error to try to minimize or eliminate them before we form the conclusion of guilt beyond a reasonable doubt?

-Justin J. McShane, Esquire, Pennsylvania DUI Attorney

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Justin McShane

PA DUI attorney Justin J. McShane is the President/CEO of The McShane Firm, LLC - Pennsylvania's top criminal law and DUI law firm. He is the highest rated DUI attorney in PA as rated by Avvo.com. Justin McShane is a double Board certified attorney. He is the first and so far the only Pennsylvania attorney to achieve American Bar Association recognized board certification in DUI defense from the National College for DUI Defense, Inc. He is also a Board Certified Criminal Trial Advocate by the National Board of Trial Advocacy, a Pennsylvania Supreme Court Approved Agency.