A Yucca Valley couple was arrested at Walmart Thursday afternoon after a man was seen trying to steal a cell phone. According to a Sheriff’s report, Wal-Mart employees observed Blair Foster, 35, using a knife to cut a cell phone from its packaging and alerted Sheriff’s deputies who were in the store on another shoplifting call. Walmart employees told the deputy that Foster has committed eight other burglaries at the store since September 2013, and has been banned from Walmart. Foster was arrested at gunpoint and the knife and phone were recovered. Foster’s vehicle was located in the parking lot, and during a search of the vehicle, deputies located methamphetamine, drugs, and drug paraphernalia. Foster’s wife, Kaitlyn Murphy, 25, was also in the vehicle, and deputies determined she was under the influence of a controlled substance. Blair Foster was arrested for investigation of possession of methamphetamine for sale, booked at the West Valley Detention Center, with his bail set at $50,000. Kaitlyn Murphy was cited at the Morongo Basin Jail and released.