Shortly before 9 p.m. on April 11, 2014, officers conducted a traffic stop on Defendant because his semi-truck did not have a license plate.

...evidence he was attempting to locate a prostitute or soliciting sex prior to the traffic stop. Specifically, evidence that when the officers first observed Defendant's truck, he was illegally parked in front of a homeless shelter asking women to accompany him in his truck. In addition, there was writing on the side of Defendant's truck appearing to solicit prostitution, and offering to pay money on a weekly basis. In addition, the officers found some "sex toys" when they searched Defendant's truck.

Source: No. 1 CA-CR 15-0039. Court of Appeals of Arizona, Division One.  March 31, 2016