In Illinois, even if your breathalyzer is at or just slightly over .08, you may still be able to fight a charge of drunk driving. The .08 limit is only a legal presumption that you were driving under the influence of alcohol or drugs. An experienced attorney may be able to present other evidence to show your driving was not impaired. For example, if you took field sobriety tests, such as the walk and turn test, and you were able to complete the test competently, you may have a chance.