Diaz was stopped while driving a car because an officer could not read the expiration date on the vehicle's temporary license tag. Diaz had no driver's license because his had been suspended, and he was charged with driving while his license was revoked. He argued that the traffic stop itself was improper and the evidence against him should be suppressed. The trial judge disagreed and sentenced him to 24 months incarceration. On appeal, the Second District Court reversed.