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DUI Defense & DUI Issues & Technology hudson on 20 Nov 2007 09:20 am

FBI Repudiates “Scientific” Analysis

Next time you are listening to court case in which the defendant is proclaiming their innocence and the sole evidence for the prosecution is circumstantial evidence. When suddenly the prosecution trots out an “expert” with some sort of mechanical wizardry that purports to link the defendant to the crime. The scientific method involves some sort of analysis based upon dubious scientific theory, think it doesn’t happen? Think again.

Two years ago the FBI rejected the notion that lead bullets could be linked to a crime scene through analysis of the chemical composition of the bullet and bullets subsequently found on a suspect. This “scientific” technique was based on the theory that each “batch” of lead from which bullets were made had some sort of unique quality that could separate each one batch from another. The technique was initially developed when President Kennedy was assassinated and grew to be a commonly accepted science, then, in 2004, the National Academy of Sciences determined that the technique was unreliable and misleading. Interestingly, the technique was commonly accepted for over three decades before finally it was deemed unreliable.

Now, you would think that the FBI would make it a priority to discover which convictions were based in full or in part upon the misleading “scientific” technique, since our justice system is founded upon “innocent until proven guilty” and a lot of societal lip service is given to the importance of freedom, yet nothing has been done.

It is a sad, sad statement on our legal system that citizen’s who may have wrongly convicted for crimes based on this “scientific” technique continue to sit in jail with no one fighting the wrongful nature of the conviction.

You may ask yourself, why would a blog dedicated to DUI find this interesting? Well, as it turns out we have been fighting over breath testing for decades, the only true measure is that from the blood, every other measure is a “scientific” guess based upon some circumstantial evidence. The breath is measured either by elctrochemical cell technology or by infrared spectroscopy, neither of which measure the actual blood alcohol concentration. Will we eventually prevail on the issue of breath testing as circumstantial evidence as opposed to direct evidence? Will we ever manage to win the challenge that the “technology” is merely a guess? That the foundation of the theory is dubious and that the results are “unreliable and misleading?” One can only hope…

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