Three key groups of Vietnamese refugees have been categorised as 'high risk' cases who have no future under Chinese rule next year, but Hong Kong authorities cannot provide any details of plans to relocate them. Abandoned children, psychiatric cases and prisoners with sentences straddling the handover have been highlighted in a review of the refugee population by camp management at the Pillar Point refugee camp. Centre manager James Ginns said all three groups had a right to be worried about their futures, but there was nothing he could tell them. Mr Ginns said 32 children aged between two and 15 had been abandoned or were 'semi-abandoned'. Many parents were drug addicts or in jail, he said. Pillar Point is also home to 18 long-term psychiatric cases who require constant medication and counselling at the nearby Castle Peak Hospital. 'There is also a group of 177 prisoners in jails across the territory; 27 of these people have sentences that go beyond the handover,' Mr Ginns said. Under the Basic Law, Vietnamese refugees in the territory are precluded from gaining permanent residence under the Special Administrative Region government. A Security Branch spokesman said: 'We do not release details of the ongoing efforts being made to secure the resettlement of the remaining caseload.'