Asset forfeiture is the seizure of assets by the federal government and occurs in both criminal and civil cases. In civil cases, the federal government attempts to prove that the property subject to forfeiture was used to commit a crime. In criminal cases, the property is usually forfeited as part of a sentence following a conviction. The U.S. Marshals Service is responsible for liquidating property that is seized and forfeited by Department of Justice agencies. The U.S. Department of Treasury is responsible for liquidating properties seized by Treasury agencies.