Is there a lawyer in the house?
My recollection of federal law regarding mary jane is that it is part and parcel of the commerce clause in the Constitution. The purchase or sale is a taxable event requiring a 'Tax Stamp' from the Federal Government (Treasury Department) to be considered a legal transaction. Is there some sort of agreement with the State of Colorado that the Federal Government will not enforce Federal Tax laws on this issue?
If a product is produced and sold within one state how does the FEDERAL GOVERNMENT have any right over it?
They do so by lying...they say that since it might go over state lines it is subject to the FEDERAL LAWS.
THAT is their entire justification for imposing FEDERAL LAWS on marijuana.