• Arrested for DUI?

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    A DUI is a criminal offense that can result in serious penalties. Hiring an attorney that focuses on handling DUI cases can make a major difference.



    Hiring an attorney does not have to break the bank. Parker Law Center aims to provide all clients effective DUI representation at affordable rates.



    Our aggressive defense strategies have enabled us to successfully represent a variety of complex misdemeanor and felony DUI cases across Southern California.
  • Can my Blood Alcohol Results be Challenged?

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    Blood Tests: There are many defenses that can be utilized to challenge blood alcohol results. Blood tests are typically more accurate than breath tests; thus, they are usually challenged less often. First, when a laboratory tests the blood sample for blood alcohol content, it usually employs a method called headspace gas chromatograph. Headspace is considered the gas in the vial between the sample and the top of the vial. A sample of that gas is taken and placed into the gas chromatograph (GC). The GC tests the sample and determines the blood alcohol content. It is assumed there is a generalized ratio between alcohol content in the blood and alcohol content in the headspace. That ratio is utilized to determine the person’s blood alcohol content. Defendants have a right to a blood split in which the blood sample may be retested. When the blood sample is retested the toxicologist typically utilizes direct injection. Direct injection is when a toxicologist will take a sample of the blood and directly insert it into the chromatograph. It is important to contact a skilled DUI defense attorney to subpoena the laboratory’s testing practices, methods, and technician notes to aid in your defense.

    Breath Tests: First, a skilled DUI attorney should subpoena all accuracy checks, maintenance and calibration records for the particular breath testing device. Second, depending on the results, the attorney may consult with a toxicologist to review any additional attack methods. Third, all breath testing devices have a margin of error plus or minus .01% meaning, a blood alcohol content of 0.08% could be as low as a .07% or as high as a 0.09%. Fourth, a breath testing instrument is unable to actually measure the alcohol content in the blood, rather it measures the alcohol content in breath particles and converts it to reflect a blood alcohol content. It is assumed that there is a 2100:1 ratio when converting breath alcohol to blood alcohol. Meaning the concentration of alcohol in a person’s blood is 2100 times the alcohol in a person’s breath. This is known as a partition ratio. The 2100:1 ratio is a generalization and would vary between individuals. Finally, there are a number of additional ways to challenge the results of a breath test. You should contact the Parker Law Center to explore your defense.