Obviously the associate professor doesn't follow politics.

In Canada, political parties are more interested in getting elected, providing for friends and family and photo ops than enforcement of International conventions.

The Liberals are by far the worst and have ratified many International treaties without ever bothering to enforce them at home. Kyoto and copyright treaties being the most prominent in recent years.

To be fair though it was our courts (Charter of Rights) which prevented International copyright laws from being enforced here at home.

Justin likely assumes our Charter gives us the freedom to act however we please where cannabis is concerned. Especially considering Justin is a user just like his parents, which explains his cognitive deficits when things like laws are concerned.