reoffending rates

here seems to be a very steep rise in frequency of reconviction events between the two periods September 2008 to March 2010 and September 2010 to March 2012. We see the same pattern with re-offending rates.
Almost 400 criminals carrying out community service reoffend before completing their punishment every week, it has been claimed
Hardened criminals are reoffending at a record rate while the number of first-time offenders has dropped in England and Wales