School to prison pipelines: Associations between school exclusion, neurodisability and age of first conviction in male prisoners

Both school exclusion and neurodisability are prospective markers for increased risk of subsequent contact with criminal justice system in general and justice-involved samples. However, relationships between school exclusion, neurodisability, and age at first conviction have received minimal attention. Age at first conviction is an important outcome, as justice system contact is criminogenic, so people convicted at a younger age are at risk of becoming entrenched in the system. This issue was addressed with data collected from 3035 convicted male adults, who completed the Do-IT Profiler screening assessment in HMP Parc (Wales, UK). Multiple school exclusions were associated with earlier first convictions, with those excluded once, 2–3 times, and 4 or more times being first convicted 3, 5, and 6 years earlier on average than the never-excluded cohort. Of the excluded cohort, 45% were sent to a Pupil Referral Unit (PRU) (a facility for children excluded from mainstream school). They were first convicted an average of 2 years younger than those who were excluded but never sent to a PRU, and an average of 6 years younger than those who were never excluded. This suggests that being sent to a PRU is associated with earlier first convictions than exclusion alone. Each standard deviation increase in neurodisability (indexed by lower scores on a functional skills screener, used here as a proxy for neurodisability) was associated with being 0.5 years younger at first conviction. Finally, school exclusion was correlated with scores on the functional skills screener, suggesting that school exclusion could be a potential mechanism for the criminalisation of children with neurodisability. These findings elucidate associations between school exclusion (including PRU referral), poor functional skills indicative of neurodisability, and criminalisation at a younger age in prison populations.