Chain of Custody: The essential forensic link

Chain of Custody: The essential forensic link

The chain of custody is known as the forensic link. It is essential. It’s proper documentation differentiates between it and other forms of medical/biological testing. It serves two major purposes, if done correctly. First, it forms a receipt of who had it when and who had it next. This is the typical and tradition notion […]

In chromatography, you see what they want you to see: Get the Electronic Data Files

In chromatography, you see what they want you to see: Get the Electronic Data Files

In chromatography, you see what they want you to see: Get the Electronic Data Files By: Justin J. McShane, JD, F-AIC and Josh D. Lee, JD What evil lies in the heart of man? The Shadow knows… What evil may lie in the heart of chromatographers? The Electronic Data Files (EDF) know… In courtrooms all […]

“But they did a calibration on the machine” Do they really? Calibration versus calibration check

“But they did a calibration on the machine” Do they really? Calibration versus calibration check

Prosecutor: “The instrument was calibrated.” This phrase is uttered in courtrooms all across the United States many times every day. But is it true? Probably not Calibration is the imperfect act of teaching the machine what response from an unknown yields typically related to a concentration. It should be done using Certified Reference Materials (CRMs […]

A New ACS Course that Teaches Lawyers About Forensic Drug Analysis

A New ACS Course that Teaches Lawyers About Forensic Drug Analysis

In my last post, I questioned “What’s wrong with Forensic Science? Criminal Defense Attorneys That’s What’s Wrong.” We, the defense bar, need to become better educated in the science of forensic science. We have to get training not simply in what the police or police scientists are taught (how to be a button pusher), but […]

Pennsylvania State Police Agree to Halt Evidential Breath Testing in PA

Pennsylvania State Police Agree to Halt Evidential Breath Testing in PA

Breaking News: According to the Legal Intelligencer article “Breath-Test Ruling Could Affect Thousands of DUI Cases,” in reaction to our firm’s successful litigation of Commonwealth v. Jason Schildt, and the Linear Dynamic Range Challenge, the Pennsylvania State Police have agreed to halt all evidentiary breath testing in Pennsylvania. According to reporter Zack Needles: In fact, the […]

Complete Ruling in Commonwealth v Schildt

Complete Ruling in Commonwealth v Schildt

COMMONWEALTH OF PENNSYLVANIA v. JASON RICHARD SCHILDT IN THE COURT OF COMMON PLEAS DAUPHIN COUNTY, PENNSYLVANIA NO. 2191 CR 2010 OPINION “Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence.” These famous words were first spoken by […]

Open Letter to the Department of Health about the Linear Dynamic Range Challenge

Open Letter to the Department of Health about the Linear Dynamic Range Challenge

I sent the following letter to the Pennsylvania Department of Health right after Judge Lawrence F. Clark, Jr.’s ruling in the Linear Dynamic Range Challenge. So far, there has been no response, but it has also only been a couple of days. Let’s hope that they truly care about justice and science and the safety […]

Press related to the Linear Dynamic Range Challenge and the Initial Calibration Challenge

Press related to the Linear Dynamic Range Challenge and the Initial Calibration Challenge

Yesterday (January 7, 2012) our office filed a motion that seeks to suppress all BrAC tests in pending cases in the state of Pennsylvania. This would cause all per se DUI cases to be dismissed in Pennsylvania regardless of the BrAC reported results. Here has been the press coverage on the successful Linear Dynamic Range […]