Singapore - A recovering drug addict claimed she was pressured into having sex with a police sergeant who worked at the Singapore centre where she went for urine tests, news reports said Saturday.

Phua Jun Yang, 25, is facing accusations in court that he showed leniency in his supervision of the woman's urine tests in return for sexual favours, The Straits Times said.

He is also accused of contravening the Official Secrets Act (OSA) on January 4, 2007, by giving the woman inside information about the activities of a drug dealer.

"I was afraid that if I did not do what he wanted, my urine samples may have problems," the 23-year-old waitress said during the opening day Friday of an expected six-day trial.

Phua could be jailed for up to five years for corruption and fined up to 100,000 Singapore dollars (75,000 US dollars). For the OSA charge, he could be jailed for up to two years. (dpa)