Dad of young offender with autism speaks out

My son is in a young offenders institute and was diagnosed with autism/ADHD at 14 years of age.
In my humble opinion he should not be in a YOI. Yes he committed a crime and yes he has to pay the price but it does appear that the YOI don't really know how to deal with him. 
Since he has been in the establishment he has gotten in to more trouble with other offenders so how is the system working? Quite simply it is not.
I remember reading an article by a well known reformer who said that prisons are places where criminals learn more crime and I believe this is very true.
I really don't want to go in to detail but the YOI my son is in is a shambles.