Richard James Ruvido v. Florida

Whether the Due Process Clause permits a State to convict a defendant of the crime of refusing to submit to a breath test without requiring the jury to determine that the defendant voluntarily refused, where the defendant presented evidence that a physical condition prevented immediate compliance and requested an instruction distinguishing physical inability from voluntary refusal.

Whether the Sixth and Fourteenth Amendments permit a State to exclude qualified defense-expert testimony concerning material deviations from standardized fieldsobriety-test protocols while permitting the State’s officer to characterize the same exercises as evidence supporting impairment and probable cause.