`Imagine watching your cannabis-smoking son stab himself three times in the stomach right in front of you – and later having to deal with his suicide.
Imagine watching your beautiful daughter become a schizophrenic after using drugs and having to take over the job of caring for her baby.
Imagine realising you had a mental health problem and were seeking help, only to be turned away because the mental health service classified your problem as drug-related.
For years the parents of cannabis users have seen a link between their child’s use of cannabis and mental illness.
Now evidence is emerging that they are right.’