Philippine National Police (PNP) Director General
Avelino Razon was ordered by
President Gloria Macapagal Arroyo to personally supervise the investigation of the explosion. The police arrested three suspects: Caidar Aunal, Adham Kusain, and Ikram Indama. Subsequent police interrogation disclosed "damning evidence" against Akbar's political rivals, former Deputy House Speaker
Gerry Salapuddin, and
Anak Mindanao Party-List Representative
Mujiv Hataman, citing the trail of events and mechanisms involved in the planning of the attack. As such, police said charges would be filed by government prosecutors against them. The two political figures appeared beforehand at the National Police headquarters to clear their names of involvement in the attack. Subsequent action by government prosecutors made Salapuddin and Hataman, together with the latter's brother,
Benjamin "Jim" Hataman, suspects and masterminds in the bombing. On December 14, 2007, in a 2-page resolution, the
Supreme Court of the Philippines issued a
writ of habeas corpus on the petition of suspects Caidar Aunal, Adham Kusain, and Ikram Indama. It required the PNP's Criminal Investigation and Detection Group (CIDG), National Capital Region-Criminal Investigation and Detection Unit (NCR-CIDU), and the PNP Custodial Center to file returns before
Quezon City Regional Trial Court Executive Judge Romeo Zamora on December 18. On December 20, 2007, the criminal case Q-07-149982 filed against accused Aunal, Kusain, and Indama was raffled to Regional Trial Court Branch 83 Judge Ralph Lee after Branch 80 Judge Charito Gonzales recused herself. On January 29, 2008, Judge Lee granted the three accused's motion for preliminary investigation, ordered the DOJ to issue a resolution within 20 days, and set the
arraignment for February 26. The Judge also directed the Criminal Investigation and Detection Group (CIDG) to transfer all accused to the Quezon City Jail. On April 28, 2008, Judge Lee issued the warrant and ordered the arrest of former Basilan Representative Gerry Salapuddin, Police Officer 1 Bayan Judda, Jaharun Jamiri, and Benjamin Hataman, all indicted on multiple
murder and multiple frustrated murder charges before the court. Jamiri Hajirun, former mayor of
Tuburan, Basilan, was indicted for violation of Section 2 of Republic Act 8294 (Illegal Possession of Explosives) before the Manila RTC on May 15, 2008. A bail of P200,000 was recommended for his release. The PNP claimed he had direct knowledge related to the bombing. On November 17, 2017, Indama was convicted of multiple murders and sentenced to life imprisonment without the possibility of parole. Meanwhile, Kusain and Aunal were acquitted. Three other suspects remain at large: Jamiri, Judda, and Benjamin Hataman. ==See also==