A DRUG trafficker finally received his punishment yesterday, six months after his original trial was halted when a confession statement was accidentally shown to the jury. Wong Chung-ling was jailed for eight years at the High Court, but when he appeared before a jury in April he faced a possible 20-year sentence on charges of manufacturing drugs. After the court blunder, the jury was discharged and Wong pleaded guilty to the lesser charge of trafficking. He also agreed to give evidence in two other drug-related cases. Wong was arrested in July last year outside a Kornhill Garden building. Police found him with a key to a flat. He then led them to a second key hidden in a flower bed. Inside the flat, police found 12.36 kilograms of drugs, including 9.70 kg of morphine. They also discovered blenders, presses and moulds. After Wong was jailed yesterday, John Mullick, for the defence, said: 'It must be said it was the fault of the Crown. From the outset he admitted he was a courier.' Mr Justice Leong said he was handing down a lighter sentence because the defendant admitted his guilt and said he was willing to help catch other traffickers.