Contrary to popular belief, a felony conviction or arrest does not mean you are automatically subject to deportation. To be sure, it isn't ideal. However, it isn't the end of the world. A DUI results when you are arrested and charged with operating a vehicle (any vehicle, motorcycle, car or truck) while under the influence of alcohol. The police can determine you are under the effect by administering the field sobriety test or subjecting you to a Breathalyzer test (usually both are done).