January 2001 and after: Security Services Increase Surveillance of Jemaah Islamiyah after Bombing Campaign

Following a wave of bombings in Indonesia and the Philippines in late 2000 (see December 24-30, 2000), regional intelligence services increase surveillance of al-Qaeda affiliate Jemaah Islamiyah (JI). Police find that a call claiming responsibility for the bombing was made from a phone registered to JI operative Fathur Rohman Al-Ghozi and trace calls from this phone to JI leader Hambali and one of his subordinates, Faiz abu Baker Bafana. Philippines authorities then keep al-Ghozi under surveillance for a year, before arresting him in January 2002. [Christian Science Monitor, 2/14/2002] Hambali is named in the media as a JI leader around this time (see January 24, 2001).