The driver was underneath the impact: Evidence have to exhibit the driving force was impaired, usually by way of a blood Liquor concentration (BAC) of 0.08% or larger or evidence of drug impairment. Legal guidelines vary from condition to condition, as do criminal punishments, but felonies have a major penalty: https://dui-lawyers.usattorneys.com/you-wont-believe-these-crazy-drunk-drivers-in-florida/