fuckthewhatfuck

Amendment 64 reads:

NOTWITHSTANDING ANY OTHER PROVISION OF LAW, THE FOLLOWING ACTS ARE NOT UNLAWFUL AND SHALL NOT BE AN OFFENSE UNDER COLORADO LAW OR THE LAW OF ANY LOCALITY WITHIN COLORADO OR BE A BASIS FOR SEIZURE OR FORFEITURE OF ASSETS UNDER COLORADO LAW FOR PERSONS TWENTY-ONE YEARS OF AGE OR OLDER: (a) POSSESSING, USING, DISPLAYING, PURCHASING, OR TRANSPORTING MARIJUANA ACCESSORIES OR ONE OUNCE OR LESS OF MARIJUANA.

The law lists purchasing right there along with possessing, and displaying.

What law would someone be breaking by purchasing marijuana from an illegal seller, given that purchasing is expressly lawful per the amendment?

They answered the purchasing question below:

Currently the seller violating the law by distributing a controlled substance. The buyer could be viewed as engaging in a conspiracy to violate the law. This is unsettled and we are waiting for direction from the State Legislature and prosecutors.