Blood Test

Anticipating the Prosecution's Strategy Knowing the District Attorney's approach makes winning a DWI blood test case much easier. The primary strategy for a Tarrant County DWI lawyer to recognize is how the prosecution attempts to portray the forensic evidence to a jury. The Myth of Forensic Certification Many times, the DA will claim that because the testing facility is a "certified" lab, you should automatically trust the results. However, this…

The Necessity of Machine Validation A gas chromatograph must undergo rigorous validation before a laboratory can use it to report forensic blood results. Specifically, ANSI/ASB 036 establishes the minimum standards required to ensure a machine produces accurate data. In many cases, however, expert analysis reveals a significant lack of proper validation on these instruments. The Conflict of Aqueous vs. Blood Solutions A frequent issue in forensic testing is the failure…