It would be unfair to witnesses in the protection programme if they were denied appeals against decisions regarding changes of identity, legislators claimed yesterday. Under the Witness Protection Bill, witnesses can appeal only when they are refused entry into the programme or when their participation ends. Witnesses considered to be at high risk will be allowed to adopt new identities for protection under the programme jointly run by the police and the Independent Commission Against Corruption. James To Kun-sun, of the Democratic Party, cast doubt on the review mechanism at a Bills Committee meeting, saying it did not give witnesses a chance to appeal against decisions regarding new identities. But Jessie Wong Hok-ling, principal Assistant Secretary for Security, feared the programme could be abused if rules were relaxed.