Jack has in his possession 100 grams Alpha-Methylthiofentanyl and 1kg of Heroin. Under The Criminal Code Western Australia:

1. What offenses has Jack committed?
2. What charges is he likely to face and what determines the identified charges?

Bare in mind that some drugs may be restricted, others not.That is, one might be allowed to have a certain quantity, in their possession without facing criminal charges. Whereas some are completely restricted.

3. Pursuant to the relevant charges, what are the elements of those charges under The Criminal Code WA?

Some drugs may have a generic name, please also identify establish authority cases to support your answer in terms of charges relating to being in possession of these drugs with respect to their quantities.