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BAC DataMaster Tag

Dayton DUI Attorney Charles Rowland > Posts tagged "BAC DataMaster"

Reviewed & Experienced DUI Attorney

Defense of an Ohio DUI or alcohol-related charge can be challenging. The main witnesses against you are the police. There is scientific evidence from the breath test, blood test or urine test that is presented against you.  Ohio has set strict limits on the ways the chemical tests can be attacked.  Your attorney will need to be familiar with the defenses and be skilled enough to present those to a judge or jury.  Often, a video tape of the arrest will be bolstered by the police officer's testimony.  Your performance on the standardized field sobriety tests may be damaging to...

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Approved Breath Testing Instruments: O.A.C. 3701-53-02

Ohio Administrative Code 3701-53-02(A) sets forth the approved instruments for evidential breath testing in Ohio.   It states, (A) The instruments listed in this paragraph are approved as evidential breath testing instruments for use in determining whether a person's breath contains a concentration of alcohol prohibited or defined by sections 4511.19 and/or 1547.11 of the Revised Code, or any other equivalent statute or local ordinance prescribing a defined or prohibited breath-alcohol concentration. The approved evidential breath testing instruments are:BAC DataMaster, BAC DataMaster K, BAC DataMaster cdm; Intoxilyzer model 5000 series 66, 68 and 68 EN; and Intoxilyzer model 8000 (OH-5).O.A.C. 3701-53-02(B) lists the approved...

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DUI Blood Tests: Whole Blood vs. Serum/Plasma

Ohio Administrative Code 3701-53-03(A) sets forth the techniques and methods for determining the concentration of alcohol in blood, urine and other bodily substances.  Pursuant to that rule, Ohio allows for testing including gas chromatography and enzyme assays.  To challenge a blood test, it is important to know if the State has tested the blood as whole blood or as serum/plasma.  Operation with a concentration of alcohol is prohibited if the concentration in whole blood is equal to or exceeds .08%, R.C. 4511.19(A)(1)(b).  However, the prohibited concentration for whole blood is a concentration equal to or exceeding .096%, R.C.4511.19(A)(1)(c).  The high...

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DUI Case Law Update: State v. Castle (Franklin County)

State v. Castle, 168 Ohio Misc.2d 6, 2012-Ohio-1937 On July 3, 2011, Floyd Castle was arrested and charged with OVI (drunk driving) and other offenses.  When the Trooper administered a chemical test he chose to conduct that test on a BAC DataMaster breath test devise instead of Ohio's newest machine the Intoxilyzer 8000.  The Trooper was qualified as a senior operator on the BAC DataMaster.  The Trooper also held an operator-access card to administer tests on the Intoxilyzer 8000.  The issue before the court is whether or not the Ohio Administrative Code, specifically O.A.C. 3701-53-09(D), allows the Trooper to conduct a...

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Infrared Spectroscopy and the Falsely High Breath Test (by DaytonDUI)

The Intoxilyzer 8000 operates using the scientific principle of infrared (IR) spectroscopy, which identifies molecules based on the way they absorb infrared (IR) light.  More specifically, when molecules in a breath sample are exposed to IR light the way they vibrate changes due to the bending of the (C-O, O-H, C-H, C-C) bonds.  Each type of bond absorbs light at a known wavelength, thus the amount of IR absorption identifies a substance as ethanol and how much ethanol is in the sample.But here’s the rub…  The machine can identify any compound containing a methyl group molecular structure as ethanol thereby...

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DaytonDUI, Defending a Breath Test Case

"I'll Huff and I'll Puff and Blow Your House Down" Did you know that your breathing pattern can significantly alter the concentration of alcohol on your evidential breath test?  According to scientific research, "[t]he subject's test manner of breathing just prior to providing breath for analysis can significantly alter the concentration of alcohol in the resulting exhalation." (Jones, 1982, Schoknecht, 1989) as cited in Physiological Aspecs of Breath-Alcohol Measurement, Alcohol Drugs & Driving Vol. 6, No. 2, A.W. Jones.Hyperventilation "...

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Ohio OVI Breath Testing – Bigger Is Better?

The Intoxilyzer 8000 breath testing machine adopted by Ohio in all 88 counties differs significantly from the Intoxilyzer 5000 machine that has been used for years.   Both machines operate using INFRARED ABSORPTION to analyze breath samples.  The sample (deep lung aveolar air) is blown into the sample chamber and then excited by an infrared light source.  The decrease in intensity of the IR light due to absorption by alcohol in the breath sample is proportional to the alcohol in the breath. The Intoxilyzer 8000 has a significantly smaller sample chamber (29.4 cc's vs. 84 cc's in the 5000) and...

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Ohio DUI Law: The Hematocrit Defense

How bloody is your blood?  The hematocrit is the number expressing the cell volume of blood (the size and number of red blood cells in proportion to the rest of the blood).  As humans, we all have a natural variation in our hematocrit.  Healthy men have a natural variance from 40.7% to 50% and healthy women have a natural variance from 36.1% to 44.3%.  The hematocrit level is a moving target.  Illness, hydration and stress can cause variations in the hematocrit level.The hematocrit level affects all breath tests by governing how much alcohol may be contained in the blood and,...

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The Prescription Drug Defense

While many people think of impaired driving as involving alcohol, we are increasingly seeing people accused of being impaired by prescription drugs.  Clients are surprised to learn that the same harsh penalties that apply to alcohol impairment also apply to prescription drug impairment.  You need an attorney who knows how to fight a drugged driving case.Drugged driving cases involving prescription drugs present a problem for law enforcement as indicators of prescription drug use are less apparent.  The standardized field sobriety tests are crude tools for detecting alcohol and may be useless in determining prescription drug impairment.  Challenging the officer's observations...

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Intoxilyzer 8000 Is Unreliable!

Today, in State v. Heather Reid, Case No. TRC 1100716 in the Circleville Municipal Court, Judge Gary Dumm has ruled that "The State of Ohio cannot expect this Court to find the Intoxilyzer 8000 reliable when the State refuses to address known problems and explain why those problems can be ignored."The Court calls for independent laboratory testing to address the issues raised by the adoption of the Intoxilyzer 8000: RFI, sample size of the chamber, volume of the sample tested, possible operator manipulation of the results, possible CMI modifications of the software without the knowledge of ODH and slope detector...

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