Section 881.6 - Reducing a sentence for substantial assistanceA. Upon motion of the state, the sentencing court may reduce the defendant's sentence if, after sentencing, the defendant provided substantial assistance in furtherance of the investigation or prosecution of another person.B. In evaluating whether the defendant has provided substantial assistance pursuant to the provisions of this Article, the sentencing court may consider the defendant's presentence or postsentence assistance in furtherance of the investigation or prosecution.C. If the sentencing court makes a determination to reduce the sentence to a time period which is less than the minimum sentence provided by law, that sentence shall not be imposed without the consent of the district attorney.D. For purposes of this Article, "sentencing" means the oral announcement of the sentence.