A TEENAGER stole an inspector's gun from his bedside table after sneaking into police quarters late at night, the High Court heard yesterday. Wu Siu-lung stole the Colt detective revolver along with 12 rounds of ammunition from under Inspector Mui Lam-sang's nose as the officer slept just centimetres away. But he was caught the following day after he was spotted shinning up a block of flats in Sha Tin to steal a pair of trousers. Prosecutor Phyllis Wong told the court Inspector Mui placed his gun and pouch, each containing six bullets, inside his bedside drawer after returning to his Tai Po flat in the early hours of January 24. But when he woke up five hours later, he discovered the revolver, holster and pouch had vanished along with $910 and two watches. Wu, who was 17 at the time, later admitted entering the flat at about 4 am after the front door was left unlocked. Wu, from Guangzhou, was arrested after brothers Cheung Ho-wah and Cheung Ho-chan tackled him as he tried to break into their block of flats in Sha Tin the following night. Ms Wong described how Mr Cheung Ho-wah grabbed hold of Wu as he clung on to the railings outside Mr Cheung's second floor flat. Wu wriggled free and lowered himself to the first floor balcony where Mr Cheung Ho-chan took up the chase. But as the two struggled, Wu produced the pistol and pointed it at the brothers before fleeing into the night. He was arrested 11/2 hours later in Tai Po Road when two officers threw themselves on Wu after he refused to put down the gun. Wu admitted a count of burglary, possession of arms and ammunition with intent to commit a burglary and possession of arms and ammunition without a licence. He denied two further counts of burglary and using the revolver with intent to resist arrest, and the charges were left on file. Defence counsel Wong Po-wing said Wu came from a ''very good and decent family''. He added: ''He had never fired a gun before. He knew nothing about guns and took it out of curiosity.'' Deputy Judge Pang adjourned sentencing for a fortnight for reports, but warned Wu he could face prison. Outside court, Ms Wong said there was no suggestion Wu knew he was breaking into a policeman's home when he burgled Inspector Mui's flat.