Former civil defence chief Peter Lim Sin Pang will take the stand on Monday after District Judge Hamidah Ibrahim ruled last week that he has a case to answer.
Lim, 52, is charged with corruptly obtaining oral sex from former Nimrod Engineering general manager Pang Chor Mui, in exchange for furthering the business interests of her company.
Last week, prosecution's key witness, Ms Pang, 49, took the stand and gave details of her alleged tryst with Lim, in May 2010. The defence counsel argued that a presumption of corruption had not been established in Lim's case and said the encounter between Lim and Ms Pang had taken place "in a moment of genuine passion".
The prosecution rebutted the claim, and said evidence had shown that Ms Pang initiated contact with Lim after learning that he had been appointed Singapore Civil Defence Force commissioner in 2009. In the end, Judge Hamidah rejected defence's argument and said that she was satisfied that the prosecution has established a prima facie case and established all the elements of the charge. Lim will enter his defence on Monday.