In DUI cases (called ‘OVI’ in Ohio), a defendant’s blood or urine sample may be tested by a crime lab to determine the concentration of alcohol and/or drugs in the sample. In court, a lab analyst testifies regarding the blood or urine testing and the results of the test. But what if the analyst testifying is not the analyst who conducted the test? The recent case of Smith v. Arizona addressed whether this violates the defendant’s right to confront witnesses.