Site: lawfirms.com
... An officer can make an arrest for the following drunk driving offenses:
Driving under the influence ... vapors, or any combination of these
Having a blood alcohol content (BAC) of .08 or greater within three hours ... of driving
If a commercial driver, having a BAC of .04 or greater within three hours of driving
If under ... This can be pursued even without test results, for example, if you refuse a blood test. ... Alternatively, if your BAC is found to be .08 percent or higher, you can be convicted of DUI. ...