CHATTANOOGA, Tenn. (AP) - DUI results from across Tennessee may be in jeopardy after the firing a Tennessee Bureau of Investigation employee for mishandling evidence.

The Chattanooga Times Free Press reported that former Special Agent Kyle Bayer handed 2,800 cases before being dismissed Monday after an internal review revealed he mistakenly switched two blood alcohol samples in a vehicular homicide case that killed a Knoxville man.

The mishandled blood sample was originally reported during an investigation by our NBC-affiliate, WSMV.

All samples obtained in the cases will be retested for blood-alcohol content. Based on those results, convictions could potentially be overturned or pending cases dismissed.

The TBI says it plans to add an additional step to its testing process to ensure the same mistake doesn't happen in the future. Chattanooga defense attorney Jerry Summers says the mistake could have led to several wrongful convictions.

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