Thailand has revoked the passports of ousted premier Yingluck Shinawatra, who has yet to publicly emerge since she slipped out of the country two months ago ahead of judgment day at her negligence trial, officials said Tuesday. Facing a possible 10-year jail term, Yingluck fled the country before a court verdict her supporters say was politically motivated. Thailand’s deputy police chief Srivara Ransibrahmanakul said authorities are still working to confirm the former premier’s location as they seek her extradition. Previously in August, Thailand’s Attorney-General’s Office said it was preparing to set up a working group to handle Yingluck’s extradition from UK.