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  • You are here: Home / Field Sobriety Tests / DUI Breath Test Reliability and Conditions

    DUI Breath Test Reliability and Conditions

    DUI Breath Test Reliability

    Experienced DUI attorney's will attempt to have results suppressed so not used against their client in trial.  For a DUI breath test result suppressed in court, the judge must determine that its results are unreliable.  Several states have administrative rules that set out procedures.  A DUI breath test requires meeting these administrative rules.  Failure to comply with these rules will result in unreliable and inadmissible test results.

    In your case, problems may have occurred with the breath machine itself, as well as the administration of the test.  Therefore, the facts and circumstances of your case will determine what arguments used by your attorney in a motion to suppress.

    Moreover, several different attacks may cause a Judge or jury to question breath test machine's accuracy and reliability.  Technical difficulties, such as improper calibration or maintenance of the machine, are common grounds for attack.  Within discovery process, attorney's will request the state produce maintenance documents.  Maintenance documents confirm the repair and calibration of the machine.  Careful inspection of records may show that the machine could not have been working accurately.  The prosecution must establish the requisite foundation for a breath test result to be admissible in court.    Part of this burden, the prosecution must prove the machine was working properly.  To clarify, when using the machine to take the defendant's sample.

    If arrested for DUI and you submitted to a chemical test of your breath, contact an experienced attorney in your state, city, or county. Be sure to explain all the facts and circumstances that occurred during the test administration.

    Related Articles

    DUI Breath Test Challenges in Court  -  For DUI breath test challenges and to get the results suppressed in court, the judge must determine that its results are unreliable. A faulty machine may cause bad results.

    DUI Breath Test Results During Trial  -  In drunk driving cases involving a DUI breath test an experienced DUI attorney will attempt to suppress the results so they can't be used at trial.

    The Different Types of DUI Breath Tests  -  Different types of DUI breath tests can be used to detect levels of alcohol present on a person's breath.

    Human Factor of Breath Test and Impact on a DUI

    DUI Trial Arguments: Opening and Closing Statements

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