Except for stepmother's guilty plea, judge finds no grounds to mitigate sentence for a 'wicked crime' Hung Man-yee, who paid HK$42,000 to have her 7-year-old stepson attacked with choppers, was jailed yesterday for 12 years. Deputy High Court Judge Peter Line said Hung had ordered the attack in August last year out of jealousy and hatred for Shum Ho-yin, whom she believed received preferential treatment from her husband at the expense of their infant son. Hung ordered the chopping, which permanently injured Ho-yin's right arm, after she was frustrated by the lack of injuries inflicted in an attack on the boy that she had ordered the month before. She had pleaded guilty to one count of wounding with intent to cause grievous bodily harm and another of common assault. Mr Justice Line said Hung's guilty pleas prevented her being jailed for 18 years - the same sentence imposed on her former boyfriend, who organised the attack - in what he described as one of the most wicked cases to come before the courts. He repeated his observation that the plot to maim Ho-yin was conceived and carried out cold-bloodedly and with a malice it was hard to countenance. Hung arranged with her ex-boyfriend - Tsang Ho-wai, 24 - to pay HK$36,000 for the boy's hand to be chopped off. Removal of the hand was a condition of payment. The court also heard that Hung had also given Tsang HK$6,000 to buy the choppers used in the attack. Tsang hired Lo Ka-ho, then 16, for HK$10,000 to carry out the attack. Lo - who also carried out the earlier assault on Ho-yin - in turn hired his 16-year-old schoolmate, Chan Chin-hong, to help him with a promise of HK$1,000. Chan held Ho-yin's 67-year-old grandmother back while Lo pinned the boy to the ground and hacked at his limbs. Tsang used an intermediary, 26-year-old Jacky Yeung Sing-kwong, to hire taxi driver Ng Tak-wing for HK$4,000 to drive the assailants to and from the scene of the attack. Tsang was given his 18-year sentence by Mr Justice Line two weeks ago. Lo received 10 years, Chan nine, Ng eight, and Yeung two. The court had heard that Hung was miserable in her marriage to Ho-yin's father and had become depressed after the birth of their son in February last year. Both Ho-yin and his half-brother were cared for by the 7-year-old's grandmother. Both times Ho-yin was assaulted, Hung had unexpectedly turned up to visit her infant son so that the grandmother would not be carrying the baby when the attacks took place. Mr Justice Line said he had given some thought to whether Hung should be given any different treatment to Tsang. 'He did it for money. You did it out of hate and jealousy,' the judge said. 'If you had not paid, it would not have happened. There is no distinction to be found between you [and him].' Hung's sentencing was postponed two weeks ago to determine whether she had been suffering from post-natal depression. But Mr Justice Line said reports did nothing to help her case. 'The reports contain matters that might aid in mitigation of a lesser crime ... but the calculated cruelty involved in this case robs them of weight, especially after you have received the generous discount for your [guilty] pleas.' He sent her to prison for 12 years for the chopping and handed her a concurrent sentence of eight months for the July assault.