Defendant appealed the decision of the trial magistrate sustaining the violation of R.I.G.L. 1956 § 31-14-2 (prima facie limits). Following State v. Sprague, 322 A.2d 36, 36 (R.I. 1974), the tribunal held that an officer must be trained to use a radar device and the device must have been calibrated within a reasonable time. Here, the officer testified that he had been trained in the use of a radar device at the Academy and that his radar device had been calibrated both internally and externally on the day the citation was issued. Accordingly, the Appeals Panel affirmed the decision of the trial court sustaining the violation against the defendant.