How To Behave Following An Arrest Under Suspicion Of DUI
You don't need to fail a field sobriety test or have a measurable blood alcohol level that is over the legal limit to be arrested under suspicion of driving while impaired. People can be arrested for DUI just because there is a strong odor of alcohol on their breath.
An officer of the law needs only circumstantial evidence to arrest a driver who is suspected of drinking and driving; but you can still be exonerated and end up with no convictions on your criminal record if the evidence didn't prove you were doing anything wrong.