State of Tennessee v. William Cole Comer

The defendant, William Cole Comer, appeals his Knox County Criminal Court jury convictions of driving under the influence, failure to stop, and possession of drug paraphernalia, and his bench conviction of violating the implied consent law, claiming that the trial court erred by permitting the arresting officer to testify as an expert witness for purposes of admitting a cocaine field test. Discerning no error, we affirm.