Someone with both conditions would be turned away from either type of program. It is a gap that still exists in many areas of the continent. Such treatment programs are still pretty rare across the continent, in spite of the demand. People with both conditions though are much more inclined to get in trouble with the law. It is major reason why there are more people in jail with schizophrenia than there are in hospital.
Someone taking medication for schizophrenia is very unlikely to get in trouble with the law.
The double load of untreated addiction and untreated schizophrenia on the other hand often lands people in jail, sometimes for violent crimes that make the front pages of daily newspapers and prejudice the public against mental illness, especially people with schizophrenia. Used under License.