A TEENAGER was acquitted yesterday of three counts of indecent assault, including one on a police sergeant, after allegedly being caught at the scene of the crime and admitting two of the offences under caution, and being positively identified by all three of his alleged victims. Represented by solicitor Jeremy Summers, the defendant, Wong Hoi-kee, 18, a hotel security guard, pleaded not guilty to three counts of indecent assault. In Tuen Mun Court, Magistrate Alan Wright said there was no dispute about whether the indecent assaults occurred, but whether they were committed by the defendant. Prosecutor Danny Choi said the first offences occurred on March 12 on a 24-year-old woman and on March 28 on a 37-year-old woman. Both offences happened near the Lui Cheung Kwong Primary School opposite Ting Fok House, On Ting Estate, Tuen Mun. On May 18 police set up a special operation to catch the perpetrator. That day a woman sergeant was walking outside the primary school at 11.35 am. Mr Choi said a man grabbed the sergeant from behind, put his hand between her legs and touched her private parts, then ran off. When the sergeant lost sight of him, she shouted for help and her colleagues arrested the defendant. The court heard the man had admitted the first two offences under caution and all three victims had positively identified him. But clearing the defendant, Mr Wright said Wong had a clear record and an alibi. A colleague testified he was working when the second offence took place. He was not satisfied beyond reasonable doubt of guilt.