1. The four accused were charged with raping a 16-year-old girl ("Kay") in a deserted quarry. They admitted to having sex with her but claimed she consented.
2. Kay said she did not consent and was threatened by the men. She cried and screamed in pain during the acts. The next day she reported the incident to a doctor.
3. The court found Teo, Sim, and Ng guilty of rape under Section 376(2) of using threats and fear. Yap was found guilty of simple rape under Section 376(1) for lack of consent. The judgment was agreed with for thoroughly examining the issues.