An element the State has to prove in a DUI is that the accused was either driving or in "actual physical control" of the vehicle. Actual physical control sounds simple enough but the question of what is actual physical control has generated some interesting case law. Of note is that if the accused was not driving or the car was not moving, then the State can still prosecute a person having actual physical control.
A person can be convicted of DUI by prescription drugs. Some people do not realize that until it is too late. If you are reading this blog, then likely you or someone you know discovered the hard way that you can be arrested for DUI if impaired by any one of a long list of prescription drugs. In Florida, DUI stands for "Driving Under the Influence". The influence can be of alcohol or drugs that are illegal narcotics or prescriptions. A DUI can be a felony in Florida.