Earlier quoted context omitted.
To clarify, you are assuming (a big if since the poster made no mention of this) that 12g includes the weight of the paper and if you were to discount that weight then you would get a lesser amount of LSD? i.e. If the paper weighs 11 g then the actual LSD amount would be 1g.
It's not a big if, this is standard practice in the US legal system. They weigh the drug + medium. If you have 1-9 grams, including the paper, minimum first offender sentence is 5 years. With the paper that's only a few doses.
it seems the war on drugs has caused more brain damage than any recreational drug. This is similar to stunts like draining the drizzle from beer cans into one empty can and declaring an open alcoholic beverage was concealed in a vehicle. LEOs can have thier respect back when they stop this sort of nonsense.