A SECURITY guard supervisor was convicted in the High Court yesterday of raping a domestic helper after threatening her with a knife. Mohammad Tariq, 20, was found guilty by a jury of raping the 26-year-old woman. In view of Tariq's age, Mr Justice Wong acceded to the defence counsel's request to adjourn sentencing for probation, training centre and detention centre reports, but pointed out that a custodial sentence would be warranted in this case. In evidence presented by prosecutor Caroline Ravenscroft during the trial, the court heard Tariq was employed as a supervisor to Pakistani security guards working at Kingswood Villas, Tin Shui Wai, a partially completed residential development. He was known to the woman and they had been out together about five times, but had lost touch a few months prior to the incident. On the evening of July 18 last year, the victim and a female friend bumped into Tariq in Wan Chai. Tariq initially invited them to a disco, but then agreed to give them a lift home in his lorry. However, instead of driving the woman and her friend home, he took them both to Kingswood Villas where he threatened to kill the woman if she did not have sex with him. He also threatened to cut her hair. Tariq raped the woman in his quarters, a wooden hut in Phase Seven of the building site, while the friend was outside. The victim later told her employer about the attack and a report was made to the police. Tariq, defended by Shaun Kelly, denied threatening the maid with a knife and a pair of scissors. While he admitted having sexual intercourse with the woman, he claimed it was with her consent.