A policeman who thought he had committed the perfect crime when he hired two hitmen to murder his wife was jailed for life at the High Court yesterday. Raymond Ng Wai-man showed no emotion as he was branded 'calculating and wicked' by Mr Justice Arthur Leong Shiu-chung. His barrister, John Haynes, clashed with the judge, who accused him of trying to criticise the jury's verdict. Mr Haynes said Ng was the first person convicted on the evidence of a perjured prosecution witness and described the move as 'alarming'. But Mr Justice Leong ordered Mr Haynes to sit down and told him that the High Court was not the place to attack the verdict. Ng was found guilty of murdering his 27-year-old wife, Choy Sau-han, in October 1995, a year after their wedding. He insured her life for $2 million and saw her death as the only way out of his financial nightmare. Ng, 31, had debts of $144,000 and suffered losses of a further $100,000 when his illegal gambling den in China went bust. He stood to gain not only the insurance payout but sole ownership of their Sha Tin flat. Ng hired ice-cream salesman Wong Tat-chuen, 33, and another man who has not been traced as contract killers. The officer, who had served with the police force for 10 years, used his expert knowledge to advise them how to make the murder look like a robbery gone wrong. And he provided them with false number plates for the car used in the crime. Even after being arrested, Ng appeared to have escaped justice when the case was discharged due to lack of evidence. But after Wong was convicted of murder, Ng was re-arrested and put on trial - with the ice-cream vendor as the prime witness. Mr Haynes complained that Wong 'had lied his head off' at his own trial and could not be relied upon as a witness of truth. The killer told the jury Choy was killed on Ng's orders. She was lured into a car, battered with a brick, strangled and dumped in the sea. The victim's mother and sister wept on hearing the verdict, saying they were relieved Ng had been convicted.