Legal right to reveal secrets to inquiry
If immigration chief Laurence Leung Ming-yin wanted to divulge confidential material to the Legco inquiry into his departure he would be protected by law.
Mr Leung told hearings he encountered many obstacles during his last three years at the department.
He said he could not give examples because he was bound by the Official Secrets Act, which made it a criminal offence for anyone to divulge confidential government information.
But Section 16 (2) of the Legislative Council (Powers and Privileges) Ordinance states no statement or admission by a witness at a Legco hearing is admissible as evidence against the witness.
Section 14 (1) says every witness is entitled to the same rights or privileges as in a court of law.
Inquiry members have said they will summon Mr Leung for further questioning.