http://www.publictechnology.net/modules.php?op=modload&name=News&file=article&sid=4377
"According to the National Audit Office, electronic monitoring of adult offenders provides value for money and a cost effective alternative to custody for low risk offenders. Three months of an electronically monitored curfew are nearly five times cheaper than three months in custody. "
The Electronic Monitoring of Adult Offenders / NAO, 1 Feb 2006
PDF - http://www.nao.org.uk/publications/nao_reports/05-06/0506800.pdf
