Raul Mata, Appellant v. the State of Texas

Summary

The Court of Criminal Appeals held that the trial court abused its discretion by admitting the expert's retrograde extrapolation testimony because it failed to meet Daubert and Kelly reliability standards, and remanded for a determination of prejudice. The decision was contested by two dissenting opinions and a concurring opinion that emphasized the variability of alcohol metabolism and the speculative nature of such expert testimony.