The study found significant differences between the group with this very low intelligence quotient indicating serious learning disabilities and other groups. The former had spent far fewer years at school and one of the most interesting facts to emerge – I ask Senator Walsh to take note – was its very high dropout rate in the first two years at secondary school. The average age at which the prisoners in question left school was 13.7 years, whereas among other prisoners it was 15.1 years. The researchers pointed out that this was the stage at which the number of remedial teachers in schools drops off severely. In their recommendations they argued that the most important way to keep people out of prison would be to increase the number of remedial teachers catering to pupils of that age, not reintroduce corporal punishment.