ST. PAUL, Minn. (KFGO/KVRR) — The Minnesota Bureau of Criminal Apprehension now says DWI breath tests administered with equipment that had data errors were accurate.
Nearly 450 cases across the state were put into question after the BCA discovered errors in September while installing gas cylinders in DataMaster instruments.
BCA lab forensic scientists have now mathematically verified that all identified DWI evidentiary breath samples that were involved have been deemed to be accurate and reliable.
When a machine is first set up, law enforcement officers enter information from the cylinder into the system. That information is then used for all breath tests until the cylinder is replaced, at which point information from the new cylinder must be entered.
As of Friday, over half of all DMT instruments in the state have been “verified and secured,” according to the BCA.
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