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Texas Criminal Defense Lawyers Association - Voice For The ...

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Those against DR profess the methodology is not specific enough for the opinion to be rendered within a reasonable degree of<br />

scientific certainty. <strong>The</strong> use of urine samples, while easily obtained, do not correlate to what is in the blood, and therefore is of<br />

little probative value. <strong>The</strong>y argue against the “expert” status due to lack of required qualifications (science background specifically)<br />

in the determination of who becomes a DR Officer and the lack of general acceptance among the members of the medical<br />

and other scientific communities.<br />

Whether you are for or against the DR program, I would hope you can see the shortcomings of the existing process. I have conducted<br />

some minor research in the area of saliva testing for drugs. <strong>The</strong>re are “six panel” kits that will detect cannabis, cocaine,<br />

amphetamines, opiates and PCP, which are mainly used for pre-employment screening and to check for drug use in the workplace.<br />

If such a process was employed in the criminal justice system, the PC for a blood sample could be established and through the<br />

use of blood a better indication of what drugs are present that could affect an individual. Even with this process, there remains<br />

the issue about what is considered “impairing.”<br />

Until such time as a general agreement can be made within the scientific and medical fields as to a definition of drug impairment,<br />

the levels impairment can be established and the best means of sampling to demonstrate the presence and levels of these<br />

substances, adjudication of driving under the influence of drugs will remain a hotly debated issue.<br />

endnotes<br />

1 U.S. Department of Health and Human Services and the National Institutes of Health as found at http://www.nhlbi.nih.gov<br />

2 <strong>The</strong> Franklin Institute Online found at http://slm.fi.edu/biosci/monitor/vital.html<br />

3,4 Medline Plus, A Service of the U.S. National Library of Medicine and the National Institutes of Health as found at http://www.hlm.nih.gov<br />

5 Circadian Rhythm Laboratory as found at http://www.circadian.org/vital.htm<br />

6 http://johnnycarson.com<br />

7 National Center for Health Statistics as found at http://cdc.gov/nchs<br />

Gene Gietzen, <strong>For</strong>ensic Consulting Associates<br />

Gene N. Gietzen’s career has spanned 32 years as a forensic chemist, police officer, serologist and crime lab director before entering<br />

private practice as the founder of <strong>For</strong>ensic Consulting Associates, Springfield, MO. He has reviewed more than 1,000 DWI/DRE cases<br />

in his career and has testified as an expert witness in the areas of Standardized Field Sobriety Tests, Blood Alcohol Estimation and<br />

Drug Recognition. Mr. Gietzen has also been a guest speaker at a variety of <strong>Criminal</strong> <strong>Defense</strong> Lawyer <strong>Association</strong> meetings on the<br />

topics of meth labs and DWI cases. <strong>For</strong> additional information, visit www.forensicconsult.com.<br />

chaaaa, chaaaa ....<br />

changes ...<br />

In the upcoming months look for new and improved<br />

changes to our website ...<br />

• register online<br />

• renew membership online<br />

• search our directory online<br />

• lawyer referral online<br />

• ecommunities online (listserv)<br />

• purchase publications online<br />

• update member information online<br />

www.tcdla.com<br />

20 VOICE FOR THE DEFENSE October 2006

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