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Forensic Associates Bioenergetics, Inc.
Madison, Wisconsin
1640 Capital Avenue, 53705


Contact:  Dr. Roy U. Schenk, Ph.D.
lawsonline.com/website/1006
608-255-4028 Or Toll Free
ruschenk@gmail.com
Bioenergetics, Inc.
1640 Capital Avenue
Madison, Wisconsin 53705

Contact:  Dr. Roy U. Schenk, Ph.D.
lawsonline.com/website/1006
608-255-4028
ruschenk@gmail.com
INTOXIMETER DEFECT: The intoxilyzer EC/IR has two switches which permit one to test a gaseous sample. The one is the switch to set the zero balance; the second is to test for any reactive substance in a sample. If one wants to be sure to get a 0.00 reading, one uses the zero balance switch. For example if one wants to portray hydrogen gas in an air sample as being un-reactive, one would press the zero balance switch. I became aware of this reality when a subject’s breath recorded a 0.00%. Shortly thereafter , the breath was tested again; and showed an illegal amount of alcohol present in the breath sample. The tester obviously had hit the wrong switch

Hydrogen in the breath is unlikely to be as much as 250 ppm of hydrogen in a human breath and this would evidently add not more than a 0.10% reading on the instrument. More common would be about 60 ppm of hydrogen in the breath. Consumption of food between one and ten hours before being tested is when the hydrogen content of the breath is likely to be higher than usual. Reporting on this in a trial may end up being a whistle blower case, so other may be some risk in exposing the unreliability of the instrument. One the other hand prosecutors may just cancel the case.

OTHER DUI CONCERNS: Dr. Schenk has been providing services primarily to defense lawyers for over 3 decades. He does other normal evaluations of blood alcohol status and effects of some meds and other conditions which may have an impact on absorption and/ or metabolism. Call him and request an evaluation form.

CHEMICAL TECHNOLODY: Dr. Schenk has a broad knowledge of chemistry and chemical technology. As a result he is likely to be able to help in understanding and explaining a wide range of chemical issues.
Information:  
Alcohol and Drug Abuse,  Chemistry,  Drunk Driving,  DUI and OWI,  Intoxication, 


INTOXIMETER DEFECT: The intoxilyzer EC/IR has two switches which permit one to test a gaseous sample. The one is the switch to set the zero balance; the second is to test for any reactive substance in a sample. If one wants to be sure to get a 0.00 reading, one uses the zero balance switch. For example if one wants to portray hydrogen gas in an air sample as being un-reactive, one would press the zero balance switch. I became aware of this reality when a subject’s breath recorded a 0.00%. Shortly thereafter , the breath was tested again; and showed an illegal amount of alcohol present in the breath sample. The tester obviously had hit the wrong switch

Hydrogen in the breath is unlikely to be as much as 250 ppm of hydrogen in a human breath and this would evidently add not more than a 0.10% reading on the instrument. More common would be about 60 ppm of hydrogen in the breath. Consumption of food between one and ten hours before being tested is when the hydrogen content of the breath is likely to be higher than usual. Reporting on this in a trial may end up being a whistle blower case, so other may be some risk in exposing the unreliability of the instrument. One the other hand prosecutors may just cancel the case.

OTHER DUI CONCERNS: Dr. Schenk has been providing services primarily to defense lawyers for over 3 decades. He does other normal evaluations of blood alcohol status and effects of some meds and other conditions which may have an impact on absorption and/ or metabolism. Call him and request an evaluation form.

CHEMICAL TECHNOLODY: Dr. Schenk has a broad knowledge of chemistry and chemical technology. As a result he is likely to be able to help in understanding and explaining a wide range of chemical issues.