A university postgraduate dropout posed as a policeman and used a stolen warrant card to take bank cards from customers using ATMs, which he later used to withdraw more than HK$112,000 over six months. Deputy Judge Ada Yim Shun-yee jailed Tse Ka-ho, 30, for 22 months after he pleaded guilty to 12 counts of theft and eight counts of impersonating a public officer. Prosecutor Joseph Lam Siu-wan told the court the warrant card belonged to his girlfriend's father, a retired police sergeant. Tse took it while visiting his girlfriend's home. He then stuck his own picture on the card to make it look authentic. Mr Lam said that between June and November last year, Tse had preyed on 11 people at ATMs in various districts of Kowloon. On each occasion he intercepted the victims after they had just made a cash withdrawal or transaction. Tse would tell them he was a police officer and produce his warrant card. He would then demand their proof of identity. All the victims complied and handed over their wallets, together with their identity cards. After a brief inspection, Tse would return the items - minus their ATM cards, having already noted their pin numbers. Money would be later withdrawn from their accounts. On one occasion, Tse transferred HK$18,600 from one victim's account. He was arrested while using the same scam to deceive another bank customer on November 2. Police officers who had been alerted to his scam intercepted him in Fat Kwong Street while he was getting into a taxi. None of the ATM cards could be recovered but Tse had repaid the money. In mitigation, barrister David Boyton said Tse committed the offences because he had to repay credit card and financial company debts. Tse studied at Polytechnic University but dropped out of a masters degree course at Nottingham University in England and since returning to Hong Kong in 2001 could not get a stable job. The court heard Tse was ashamed to reveal the truth to his family and he had borrowed every month. His family and girlfriend showed support by appearing in court yesterday.