The Court of Appeal reverses the denial of defendant’s motion to suppress, where the officer stopped defendant’s car for a license plate violation but realized upon approaching that the car actually had the proper documentation displayed, yet proceeded to question defendant and a passenger and to run warrant checks on them. The court explains that “the detention became unlawful when (1) the purpose of the stop completely dissipated … and (2) the officer then made inquiries aimed at finding evidence of ordinary criminal wrongdoing.”