I can't really speak to being diagnosed with ASD and then later with something on the schizophrenia continuum -- maybe check with the folks on that part of the forum?

But with regard to drugs and criminal activity - despite the stereotype being that we normally follow the rules and stay out of trouble, I've known quite a few autistic men who have alcoholism, drug issues, and have been to jail. Many people with those experiences have autism and ADHD.