Paris Hilton was transferred back to the Century Regional Detention Facility in Lynwood last night, where she served the first three days of her sentence last week. A Sheriff's Department spokesperson confirmed that Hilton's "medical condition is stable. She was moved last night at 10:55," and described the transfer as "a step down" in terms of the facility's amenities. The spokesperson alluded that the heiress suffers from "various psychological and psychiatric issues" and would be monitored, but gave no further detail as to the specific nature of her problems.source