Interactions with youth justice and associated costs for young people with speech, language and communication needs.

What is already known on the subject It is well documented in the literature that young people in contact with the justice system have much higher rates of previously undiagnosed SLCN than those of the general population. There is less known about whether the identification of SLCN (and subsequent treatment) leads to changes in the offending risk trajectory for these individuals, leading to lower rates of youth antisocial behaviours and crime. What this paper adds to existing knowledge This study uses a longitudinal survey of 5000 children and young people to track the antisocial behaviour and crime-risk trajectory of children and young people with SLCN. The study finds evidence that young people with 'identified' SLCN report less juvenile antisocial behaviour and lower YJ contacts after intervention. The potential lifetime cost savings associated with intervention is A$9.2 million (95% CI = A$2.05 million, A$20.1 million) (US$$6.8 million, €5.6 million, £5.1 million). What are the potential or actual clinical implications of this work? The findings of this study can quantify the effects (in terms of cost savings to the justice system) of the early identification and subsequent intervention for young people with SLCN.