Lopez V. Gonzales

Lopez v. Gonzales, 549 U.S. 47 (2006), held that an "aggravated felony" includes only conduct punishable as a felony under the federal Controlled Substances Act, regardless of whether state law classifies such conduct as a felony or a misdemeanor. Under federal law, there are two main consequences of having a prior conviction for an "aggravated felony." One is that, if the convicted person is an alien, he will be deported. The other is that, with respect to certain federal crimes, a prior conviction for an aggravated felony provides a sentencing enhancement. In this case, Lopez had been convicted of conduct that was a felony under South Dakota law but was a misdemeanor under federal law. Accordingly, the U.S. Supreme Court ruled that this conviction could not serve as a basis for deporting him.