The sister-in-law of the teen who was allegedly raped by her half-brother, said that the teen had the habit of leaving home without saying where she was going or who she would be with and not return for days.

The victim, who is intellectually disabled, moved in with her sister-in-law, a restaurant manager and her husband. The manager's husband is the accused's younger brother and also the victim's half-brother.

Giving her testimony in the High Court on Friday and on the fifth day of an ongoing trial, the restaurant manager, speaking in both Mandarin and English, testified that the victim had disagreements with her husband and did not like his "controlling" of manner.

"On some occasions, my husband could not stand her and would chase her out of the house. A few days later she would come back because she had run out of money," the restaurant manager said. The husband said on Wednesday that he took the victim to his older brother's one-room flat in March 2010 because he thought the accused was stricter and better able to control her. This was where the alleged rape took place over the next two nights.