IT all started with a mysterious transaction last year. According to records from BNI’s Karawang branch, someone called Yudi Hermawan deposited US$500,000 (Rp4.59 billion) in the bank. The records are unclear as to where this money came from, except for the word “commission.”

Sigit Purnomo, head of the Karawang branch, became suspicious. He memorized well all those who made large deposits. “They are usually owners of gas stations or rice