Aggravated DUI: A DUI committed while the defendant's license is suspended (for any reason) is a felony, and carries a mandatory minimum of four months in prison, even if it is the defendant's first DUI. The State, however, must prove not only that the defendant's license was suspended, but that he knew it was suspended. Otherwise, it is a misdemeanor DUI, which is much less serious. Mr. Wallin has successfully defended many such cases.
Vehicular homicide: Defendant ran a stop sign and ran over a mother with her baby. The baby was killed. The State charged the defendant with second degree murder, because a blood test showed that the defendant was driving while actually under the influence of marijuana. Mr. Wallin realized that while the lab results clearly showed that the defendant had smoked marijuana some time within the previous month, the portion of the test which showed that the defendant was actually under the influence was flawed; the lab had performed the analysis incorrectly. Mr. Wallin vigorously questioned the lab supervisor until he was forced to agree with Mr. Wallin. As a result, the second degree murder charge was reduced to DUI.