This means that driving while drunk won’t necessarily make you an offender. There has to be a clear manifestation first that your mental and motor skills are really impaired. So, even if you are drunk but can drive normally and with 100% consciousness of everything you do, there is no likelihood that you will be arrested. You can learn more about why DUI is termed illegal at Piety Hill Design Anaheim.
The best thing to do to avoid penalty is to drive free of alcohol. However, in cases that it cannot be avoided, driving can still be done but with vulnerability to risks.
DUI is a complex process say AGHA (a law firm well experienced in these matters).