First venipuncture on right arm failed to extract any blood. Therefore, the tech venipunctured left arm to collect blood sample for BAC testing. The sample was collected 5 months ago.
I would contact a local attorney for advice. Typically, most DUI attorneys hire their own expert to challenge blood evidence. There are a few national manufactures that produce the tubes wherein blood is stored for testing. These tubes have preservatives that claim to slow the process of contamination of the blood. However, there are always issues to challenge. Good luck.
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