This paper reports on court outcomes for people with an intellectual disability in comparison with other offenders. It is part of a longitudinal study where it was possible to examine all levels of the criminal justice system, that is, from arrest to court appearance and finally to conviction. The study is based on the summation of nearly 11 years of data, from 1 April 1984 to 31 December 1994. Using comprehensive databases, a group of offenders with intellectual disability (n=843) was "tracked" through the criminal justice system to assess their criminal history and compare it with a cohort of general population offenders (n=2442). The findings show that at the sentencing stage of the court process people with intellectual disability are treated differently from others. There was no difference between the two groups in the proportion who were convicted, that is, where a penalty was imposed by the courts. However, there were considerable disparities between groups for the types of penalties imposed. The nature of the charge does not offer an adequate explanation for this. A crucial finding is that it appears that the initial police decision to charge seems to have an enduring, albeit indirect effect at the final stage of disposition.