1) When a public agency determines that a building is unsafe or unfit for habitation and must be torn down or rebuilt to meet building and health code requirements. 2) When a governmental agency takes private property for public use under the right of eminent domain, but constitutionally the property owner must receive just compensation. If an agreement cannot be reached then the owner is entitled to a court determination of value in a condemnation action (lawsuit), but the public body can take the property immediately upon deposit of the estimated value. 3) To sentence a convicted defendant to death. 4) Send to prison.