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Volkswagen Proves that Private Proprietary Computer Source Code and the Law Do Not Mix

Thursday, September 24, 2015

Release the source code for the Intoxilyzer

 The Breaking Volkswagen Diesel Emission Proprietary Source Code Cheating Scandal highlights why private and proprietary computer source code written for legal and regulatory purposes should be free for inspection and review.  Hiding behind intellectual property rights and proprietary trade secret laws is just too tempting for human nature and private enterprise to cheat to reach goals that led to increased revenues for private companies. As the New York Times reported on September 22, 2015 in its story titled, “Volkswagen’s Diesel Fraud Makes Critic of Secret Code a Prophet,” the story identifies an early critic of propriety source code, Columbia Law Professor Eben Moglen, who seemly predicted the Volkswagen Diesel Emission Computer Source Code cheating before it happened.  He founded the Software Freedom Law Center which deals in issues similar to the cheating uncovered by Volkswagen’s source code shenanigans on emissions standards against the Environment Protection Agency.  Now dealers have cars they can’t sell and owners have cars that can’t pass emissions.  That is not only dishonest. That is stealing plan and simple.

The Volkswagen scandal shines new light on the nationwide litigation pushed by DUI lawyers for companies like CMI, Inc of Kentucky to reveal their secret computer source code for alcohol breath testing devices like the Intoxilyzer 5000 and 9000 used in Georgia which are deemed presumptively accurate measures of breath alcohol by statute and equivalent legally to a more accurate but expensive and time consuming blood alcohol test.  CMI has steadfastly refused to produce their secret source code in court for lawyers and juries to examine despite it containing only widely known and publicly available algorithms  and formulas and only allowing prohibitively expensive computer-free analysis in their corporate headquarters in Kentucky. 

This injustice was eloquently expressed by Georgia Supreme Court Justice Nahmias in Davenport v. State where he wrote, 

” when the State [of Georgia] enacts a statutory scheme in which: (1) evidence usually determinative of the defendant’s guilt (e.g., blood alcohol content in a per se DUI prosecution) is tested and reported, not by forensic experts who testify and face cross-examination on the reliability of their methods and the accuracy of their results, but rather by a machine (e.g., the Intoxilyzer 5000) that takes in a specimen from the defendant and, through internal mechanisms and computer code, generates a test report; (2) the machine’s computer code is unavailable to the defendant through discovery or compulsory process because the State avoids possessing it in Georgia; (3) the machine’s test result is admissible at trial through a witness who can say that he was qualified to operate the machine and it operated as designed (see, e.g., OCGA § 40-6-392(a)), but who has no knowledge about whether the machine was in fact designed to produce reliable and accurate results under the circumstances presented; and (4) the machine uses up the specimen, with nothing maintained for later confirmation or independent testing.”

The Volkswagen Proprietary Source Code Scandal proves that Proprietary Source Code and legal regulation -be it EPA emissions standards or Georgia DUI prosecutions- do not mix. Software used in public regulation and law as well as things like medical devices should be open, public and freely audit-able so there is no incentive to cheat to get a deal or a market advantage over a competitor at the expense of the health, freedom or safety of the American People. 

-Author: George Creal




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    George C. Creal, Jr. is a trial lawyer with 18 years of courtroom experience. He is one of only 6 Metro DUI lawyers with both an AV Preeminent rating from and a 10.0/10.0 Superb rating on  With over 100 not guilty jury verdicts under his belt, George knows how to convince a jury that the State has not proven his client guilty of DUI beyond a reasonable doubt.
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