Drug Rehabilitation Requirements and Reoffending (2011)

An analysis from West Midlands Probation Local Delivery Units

Offenders who are given DRRs have above average reoffending rates when compared to most other offender types on Probation.

Their predicted reoffending rates take account of this greater propensity to reoffend, so successful interventions may be best judged by measuring the difference between the predicted rate and the actual rate of reoffending.

This chart shows a breakdown of those rates in the West Midlands.

To put the rates into context, the average reoffending rates for all offenders across the whole Trust are about 7%, with a predicted rate of about 8%.

The actual rate of offenders with DRRs in the West Midlandsis 21%, higher than the predicted rate of 19% (see the first green and blue columns on the chart).

Birmingham South, Solihull and Wolverhampton have the highest rates. Birmingham East, Birmingham North & West and Dudley have the lowest rates at under 17%.

The last two grouped columns (successful and unsuccessful) show the differences in reoffending between those who successfully complete the DRR and those who abandon.

The differences are stark. Successful completions have a reoffending rate of 13.5%. The unsuccessful completions rate isvery high at 42% and a huge 70% above predicted.

DRR completions by local delivery unit

This chart shows the completion rates of DRRs by local delivery unit, as well as the reoffending rates of successful and unsuccessful completions.Birmingham is split into three delivery areas.

It is very obvious that those who successfully complete DRRs have much lower reoffending rates (green bars) than those that abandon their DRR (orange bars).

Dudleyhas particularly low rates at only 5.5%. By contrast, Solihull has relatively high reoffending rates among those offenders that abandon their DRR (60%) but the volumes are quite small in this case.

The completion rates are shown as blue bars, with Sandwell, Wolverhampton and Staffordshire showing the best performance at over 60%.

As the reoffending rates are so much lower when offenders successfully complete their DRR, it therefore follows that areas that achieve higher completion rates will inevitably lead to lower reoffending rates.

Tables and data