So I think I found the Act for this! The Drug Court website mentions that an individual is not eligible if they're charged with certain offences that are punishable under Division 2 of the Drug Misuse and Trafficking Act 1985, and this includes possession, manufacture and cultivation
That's great !
I just had a quick check on the Drug Misuse and Trafficking Act, and it seems about right. However, it seems strange that 'possession' would make a person ineligible for rehab in the Drug Court. Think about it... you would need to be in 'possession' of drugs in order to need drug rehab in the first place, right?
A quick skim over the act gave me a bit of an idea of what exactly 'possession' means. Under Division 2 of the act it says something about 'Traffickable quantity - possession taken to be for supply'. What i'd assume this means is if you possess a large amount of drugs, to the point where it's highly likely that you're distributing, then you wouldn't have access to the Drug Court. However, if you only possess small amounts, where it's clear you only intend to use drugs for personal use, you would probably be given rehab in the Drug Court.
Essentially, Division 2 of the act relates to 'indictable offences' only. So in essence, an individual is granted access to the Drug Court, except for cases where the person has commit an indictable offence (such as distribution, cultivation,
possession in traffickable quantity)