City Faces Massive Backlog of Untested Blood Samples, Potentially Delaying DWI Prosecutions
A Texas city is facing a major backlog of blood samples collected in driving while intoxicated (DWI) cases. San Antonio subjects DWI suspects to mandatory blood draws if they refuse to submit a breath sample. Police use breath or blood samples to determine blood alcohol content (BAC). A BAC level of 0.08 percent or higher is legally presumed to be evidence of intoxication, although BAC evidence is not always essential to a prosecutor’s case. The backlog does not appear to be causing a delay in pending DWI cases, at least according to local prosecutors. The U.S. Constitution, however, guarantees defendants a right to a speedy trial, so backlogs in the processing of evidence are always cause for concern.
Bexar County, Texas, whose jurisdiction includes San Antonio, had a contract with a private laboratory to test blood samples in DWI cases. The District Attorney (DA) canceled the contract shortly after taking office in early 2015. A series of documentation errors by the laboratory called hundreds of DWI cases into question. This included the alleged mislabeling of up to 350 blood samples, first discovered in 2014. The county now faces a backlog of over 1,000 samples, with no efficient means of testing them.
New Jersey DWI law, we should note, differs from Texas law with regard to blood draws. Multiple Texas cities have enacted “no refusal” policies that mandate blood draws from all DWI suspects who refuse a breath test. San Antonio expanded this policy from weekend traffic stops to all traffic stops in 2011. New Jersey drivers are subject to the implied consent statute for breath testing, meaning that anyone driving on New Jersey roads has, solely by virtue of driving, consented to providing a breath sample to a police officer who suspects DWI. This statute does not apply to blood samples. Police may still compel a person in New Jersey to submit a blood sample without a warrant, however, in certain circumstances.