On 12 October 2002, a series of bombs were detonated in Bali and Denpasar, killing 202 people in total. In the aftermath of the attack, the Indonesian government began a crackdown on terrorist activity inside the country; several members and affiliates of Jemaah Islamiyah were arrested, including Kadir. Kadir was proven to have met with three members of the terror group in the immediate aftermath of the blast, and was subsequently put on trial for aiding in an act of terrorism. Kadir claimed that he was a tour guide, and that his clients "Just happened to be" the bombers. No evidence was presented connecting Kadir to the assembly of the bombs used in the attack, and as such he was sentenced to 15 years in prison under Article 13(a) of Law No 15.