A mainland official attending an ICAC interview threatened to take a Hong Kong man back to China for a trial if he refused to disclose information on a corruption case.
The Independent Commission Against Corruption said it had expressed concerns to the Guangdong authorities over the incident and pledged it would follow up the issue.
The case was revealed at a Legco special Finance Committee meeting by Emily Lau Wai-hing, of The Frontier, who had received an anonymous complaint this month.
Last month, the man was invited by the ICAC to give mainland officials information on a commercial corruption case allegedly involving mainland government officials who had business connections with him.
During the inquiry, in the presence of ICAC staff, he was threatened by a mainland official using a Chiu Chow dialect and told he would be taken back to the mainland for trial if he refused to co-operate.
He complained to ICAC staff immediately but they said they did not understand what the mainland official had said. The man then filed a formal complaint to the ICAC.
Ms Lau questioned whether there were clear guidelines on protecting Hong Kong people during inquiries by mainland officials. 'Have you explained to those people what is going on? People only know they have been invited by the ICAC to 'have a cup of coffee' and they may not be well aware of their rights,' Ms Lau said.
