Who can forget Cuba Gooding Junior in the movie Jerry McGuire shouting “SHOW ME THE MONEY!”???
If he was an analytical chemist or a DUI defense attorney facing a purported result from a Headspace Gas Chromatograph with a Flame Ionization Detector, he would yell:
“SHOW ME THE SEPARATION!!!!!!”
Well, that is one of the things that a good criminal defense attorney who specializes in defending the citizen among us who has been accused of a DUI should always demand whenever there is a reported result from a chromatographic process.
As I posted before in Gas Chromatography and why is it is so important to Pennsylvania DUI arrests:
Chromatography is strictly and simply speaking “separation science”. It is the study of how an analyst can take a complex matrix (compound) and separate it out into its component parts.
If you can’t prove separation between like analytes, then your result means nothing.
Much like I posted before “A large problem in Gas Chromatography: No uniform standard for GC run position or composition“. There is also no uniform nomenclature for what this is called.
I have seen it called:
- Resolution Control Standard
- Separation chromatogram
- Matrix chromatogram
- some don’t call it anything at all (because they don’t do it)
For ETOH determinations at a minimum we need to see this proof of separation for from standards that are NIST certified values or comprised of USP grade materials (see generally: Metrology in DUI prosecution for the importance of these concepts):
- ethyl acetate
- methyl ethyl ketone
Below is an example of just such a type of proof:
-Justin J. McShane, Esquire, Pennsylvania DUI Attorney
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2 responses to “If he was an analytical chemist or a DUI defense attorney he would say “Show me the separation!!””
I feel that a problem with a lot of attorneys is they used to work for the DA or they are somehow connected to someone that is associated with the judge and this has an affect on how an individuals case is handled.
Justin J. McShane, Esquire says:
That can be a legitimate concern. This is why you should always exercise the maximum amount of due diligence in investigating your lawyer before you hire him or her. Spend a lot of time on the internet and talking to other folks. The most important thing to remember is to be 100% selfish. WHO your attorney is can have the biggest impact as far as what happens to you. So, take the time and don’t settle.