A teenager who sexually terrorised and robbed other teenagers in Yuen Long and Tuen Mun was jailed for 10 years yesterday after the judge called him a 'very serious criminal'. In jailing Huang Chi-ching, 17, Deputy Judge Esther Toh Lye-ping, in the Court of First Instance, said she had to balance his chances of being rehabilitated with the interests of the community. 'He is a very serious criminal ... but he still needs to have hope,' she said. Deputy Judge Toh also said it was obvious the youth had not received enough supervision. She added it was a very serious crime because Huang went on a spree. Deputy Judge Toh also noted he told the probation officer he committed some of the offences because he was sexually curious. The court had earlier heard Huang was influenced by 'bad publications and videos'. He pleaded guilty to eight charges of robbery, four of indecent assault, one of rape and one of serious sexual assault. The court heard that between August 2 and September 6 last year, Huang robbed eight victims and sexually assaulted five of them. He had approached different groups of teenagers and accused them of either attacking his friends or stealing from them. Huang then took them to nearby public housing buildings where he robbed them of cash, mobile phones, a camera and radio. The teenager ordered five victims, aged between 13 and 18, to follow him, ordered them to take off their clothes and then molested them. One of the girls was raped. As a result of the attacks, the police mounted an operation involving more than 100 officers and arrested Huang in Mongkok.