In the defendant's DWI trial, evidence that he had been prescribed Xanax and Valium and had taken one of the medications earlier in the day was not relevant to whether he was intoxicated at the time of his arrest. Without expert testimony to provide the foundation required to admit scientific evidence, the testimony regarding the defendant's use of prescription medications was not relevant. No evidence of the dosage he took, the time he took it or the half-life of the medication was presented. There was no testimony indicating that the officer making the DWI stop had any medical knowledge about the uses of Xanax and Valium or about the effect of combining the medications with alcohol. Layton v. State -PD 0408-07.