A University of Minnesota law professor and former Big Law attorney must pay $5,000 in fines for tax fraud and spend two years on probation—a sentence longer than prosecutors had sought.

Edward Adams, who underreported his income from 2008 to 2010, has been on the faculty of the Minneapolis law school since 1992. His position—teaching financial subjects including corporate finance and secured transactions—persuaded U.S. District Senior Judge Donovan Frank of the District of Minnesota on Jan. 23 to impose a longer probation than the one year prosecutors wanted.