She was sworn in on January 1, 2005. Upon taking office as Dallas County Sheriff, Valdez faced a department that was wracked by poor morale, tainted by allegations of corruption and marred by the fact that the Dallas County Jail had begun failing state and federal inspections prior to her election. The jail had failed inspections because of poor sanitation conditions which endanger prisoners, many of whom have not ultimately been found to be guilty of any crime and are merely being held pending being formally charged or, released; a failing smoke evacuation system, unacceptable medical care, and a lack of sufficient guards to meet the legally required guard-to-inmate ratio.