A SHEN-FACED, Samsuri jammed on the brakes of his van. On the main road in Ketewel, Denpasar, Bali, a number of plainclothes military and police officers approached his van. “What’s up?” Samsuri stammered. The police officers were taciturn. “Come with us to the station,” one of them barked. Samsuri was at a loss to know what was happening. He had done nothing.

Samsuri, 27, from Banyuwangi, was the boss of a group of