AFFIRMED. Although the state concedes that the trial court erred in refusing to allow appellant to adduce testimony challenging the voluntariness of his statement to a sheriff’s detective, see Palmes v. State, 397 So.2d 648 (Fla.), cert. denied, 454 U.S. 882, 102 S.Ct. 369, 70 L.Ed.2d 195 (1981), the error was harmless in this case. See State v. DiGuilio, 491 So.2d 1129 (Fla.*6321986). We find no error in appellant’s sentence.