To predict the likelihood of an offender committing further offences, the RoC*RoI (risk of reconviction/risk of imprisonment) tool is used.
The RoC*RoI tool is a computer-based statistical model, available in IOMS, which uses an offender's criminal history and demographics to assess their risk of re-offending. It specifically predicts:
The following table shows the level of risk associated with RoC*RoI scores and the related probability of imprisonment.
|
Score |
Level of risk |
Probability of going to prison in the next 5 years |
|
0.00 - 0.49 |
low |
less than 50% |
|
0.50 - 0.64 |
medium |
greater-than-even |
|
0.65 - 0.89 |
high |
imprisonment is likely |
|
0.90 - 1.00 |
very high |
greater than 90% |
RoC*RoI will measure and weigh up the following factors:
Note: The RoC*RoI score will change after sentencing as it will then include the current sentence.