Nearly half of Bali's 5,000-strong police force will guard the more than 500 Australians and other nationals here for the memorial services.
Pastika said there was no room for complacency as Jemaah Islamiah was still active.
Security has been tightened at hotels, but open-air bars and restaurants are still vulnerable. According to security experts, it is only a matter of time before Jemaah Islamiah strikes again in Indonesia.
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