Sioux Falls Man Sentenced to 5 Years in Federal Prison for Conspiracy to Distribute a Controlled Substance

SIOUX FALLS - United States Attorney Ron Parsons announced today that U.S. District Judge Karen E. Schreier has sentenced a Sioux Falls, South Dakota man convicted of Conspiracy to Distribute a Controlled Substance.  The sentencing took place on October 27, 2025.

Michael Lee Terveen, 39, was sentenced to 5 years in federal prison, followed by 4 years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.

Terveen was indicted for Conspiracy to Distribute a Controlled Substance by a federal grand jury in February 2025.  He pleaded guilty on August 4, 2025.

The charges against Terveen stem from law enforcement discovering him and another man passed out in a vehicle outside of Sioux Falls.  Minnehaha County Sheriff’s deputies eventually searched the vehicle and found approximately 77 grams of methamphetamine and a large amount of cash. They also found a gun on Terveen’s person.  Investigators later learned that Terveen was working with others to obtain methamphetamine and then redistribute it in Sioux Falls.

This case was investigated by United States Postal Investigations, the Sioux Falls Area Drug Task Force, and the Minnehaha County Sheriff’s Office.  Assistant U.S. Attorney Mark Hodges prosecuted the case.

Terveen was immediately remanded to the custody of the U.S. Marshals Service.