The case involved Lina Joy, a Muslim woman who wished to convert to Christianity. She sought to change her name and remove 'Islam' from her identity card without obtaining a certificate from the Shariah court declaring that she had renounced Islam. The courts dismissed her application, ruling that as a Muslim she was subject to Shariah laws on apostasy and the finality of her decision to convert was within the jurisdiction of the Shariah court, not civil courts. The ruling affirmed that while freedom of religion is protected, Muslims must follow Shariah procedures for converting out of Islam which requires renunciation to be determined by the Shariah court.