Ordeal of a 16-year-old Malay girl at the hands of her father emerged when her mother spotted stains of semen on her daughter's bed and tracksuit.
The chef mum, 49, then inspected her husband's pants in their bedroom at their flat in Paroi and found similar stains.
After the horrifying finding, on March 8, the mum confronted her daughter who confessed that her 52-year-old father had repeatedly raped her since she was 12 years old.
According to the victim, her father had been raping her even when they were staying in Kuala Pilah before they moved to the flat in Paroi.
Later a report was lodged at the Seremban 2 police station on April 8, and the girl, accompanied by her mother, was sent to the Seremban Hospital for medical examination.
The suspect was detained for questioning on Monday.
District police chief Assistant Commissioner Saiful Azly Kamaruddin said if not for the mother, the victim would have continued to suffer in silence.
"The mother's actions led police to detain the suspect, a lorry driver, who is being held for questioning till May 10. All this while, the child told us that she was forced to keep the secret after being threatened by the suspect," the New Straits Times Online quoted him, as saying.