A forged confidentiality agreement ready for delivery to another victim was recovered when police arrested a 22-year-old woman, preventing a further fake-official scam, police said. She was arrested near her home on 6 October on suspicion of obtaining property by deception.

Police allege the woman helped scammers pose as agents, delivering forged confidentiality agreements and showing victims a forged Hong Kong police appointment card to gain their trust.

The case reported to police on 19 September involved callers impersonating Hong Kong immigration and mainland public security officers. They told the victim that the victim was implicated in money laundering and demanded nearly HK$650,000 as a supposed guarantee. The victim transferred the money to an account specified by the scammers, police said.

Police believe the woman is connected to eight similar cases in total, including the one reported on 19 September. She was being held for investigation. Police warn that law-enforcement officers will not ask people to transfer money or provide private information to prove their innocence, and will not ask them to sign confidentiality agreements.