Hi Filey,
From what I've read online - medium term relates to the following - For someone placed in the Support Group we would expect "medium term" to result in a re-assessment in 18-24 months.
Short I believe is anything from 3 months, but long term, I'm not able to find, but at a rough guess based on the results of medium term, I would say it is 2 years plus.
Hope this helps,
Regards, Chris.
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
