Defendant appealed the decision of the Appeals Panel reversing the trial court’s decision to dismiss the violations of  R.I.G.L. 1956 § 31-27-2.1 (refusal to submit to a chemical test) and R.I.G.L. 1956 § 31-17-5 (entering a private road or driveway). The Court held that a police officer’s decision to stop a vehicle is reasonable where the officer has probable cause to believe that a traffic violation has occurred. Here, court held that the officer made a lawful stop because he witnessed the defendant driving erratically and almost collided with a police vehicle. Accordingly, the District Court affirmed the decision of the Appeals Panel and remanded the case back to the trial magistrate.