Defendant appealed the decision of the Appeals Panel sustaining the violation of R.I.G.L. 1956 § 31-14-2 (prima facie limits). The District Court held that where the citing officer testified that he had been trained to use a radar laser unit, and that the laser unit had been calibrated, there was substantial, probative, and reliable evidence to satisfy the evidentiary requirements set out in State v. Sprague, 322 A.2d 36 (R.I. 1974). Accordingly, since the Appeals Panel’s decision was not clearly erroneous, the Court affirmed the violation against the defendant.