(Hood River, OR)  --  Police in Hood River say they've arrested four people for fraud and mail theft.  Police say the investigation started with a traffic stop Saturday when the driver failed to produce any identification.  Officers learned the four people inside the car were staying at a local motel, and they searched the motel room to find thousands of pieces of stolen mail.  Police also found a printer they believe the suspects used to make fake driver licenses, social security cards and fraudulent checks.