I know! It's just so tricky.
One of the things that is now happening is that some medications are injected every two weeks, rather than taken daily. But this is usually enforced by court order as part of a community treatment programme after people have already been sectioned, as a condition of their release back into the community.
But what about people like Thomas Hemming who somehow fall through the gaps in the system and don't receive the psychiatric help they so desperately need?
Research shows that the earlier the intervention, the more positive the outcome. Someone like Thomas has evidently just spiralled out of control internally and then acted it all out externally.
There needs to be collaboration between teachers, parents and any other adults involved in the child's life - when they are still a child/teenager. There are ALWAYS warning signs.
As an aside, I've been watching the most amazing series on ABC iview - inside the mental health unit of Liverpool Hospital in Sydney. It's worth a watch to gain more insight into mental illness, and how it is for the sufferers. It helps to explain why they do stop taking meds. (there are three episodes.)
http://iview.abc.net.au/programs/changing-minds-the-inside-story/DO1340H001S00