I think constructive criticism should include rewriting the way they measure amounts. Currently, any container or carrier is included in the weight of a substance. So, it sounds great in theory when they say 0.002g of lsd would be a ticket. But. Do they include the weight of the bag also (they do this with cannabis). If, for example, your lsd was on a.sugar cube, that would weigh a lot more than the allowed amount and you might get pinged.
It also seems a little odd that the mdma limit is 0.5g yet heroin is 2g. I know a lot of people that might polish off 0.5g of mdma in a session, but I'd be surprised if anyone would be using 2g of heroin at a time.