http://www.yomiuri.co.jp/newse/20050519wo37.htm
Ryoji Kanno
"There are about 600 probation officers across the country for about 70,000 parolees, including those given suspended sentences and released on probation and juvenile offenders put on probation, making for about one supervising officer for every 100 parolees.
But in addition, about 50,000 unpaid part-time public servants work with the probation officers to help rehabilitate offenders. "
