Whether Petitioner's due process right to present a complete defense in his civil commitment trial was violated when the state court prevented him from eliciting testimony from his expert witness as to the legal foundation for the proper volitional impairment standard in order to correct an erroneous standard that had been provided previously by the government's experts?

Whether the petitioner was denied his due process right to present a complete defense during his civil commitment trial when the trial court precluded his expert from providing a legal basis for the proper definition of volitional impairment in order to correct an erroneous standard which had been provided by the state