The Wall St. Journal reports on new regulations Colorado lawmakers are putting the final touches on, for medical marijuana:

The regulatory system — more rigorous and comprehensive than in any other state — will likely require pot growers to place tags on every plant and train security cameras on their cultivation rooms around the clock.

...Cannabis dispensaries, meanwhile, will likely be required to record high-resolution video of every customer's face and photo identification and then link that footage to a computer record of each purchase. Even the moment when the dried weed is weighed for sale will have to be captured on video, according to draft regulations now being finalized.

Cops can demand to see the tapes at any time, without a warrant.

"We don't ask. We just go look," said Matt Cook, senior director of the state's medical-marijuana enforcement division...."You give up a lot of your Fourth Amendment rights when you're dealing with a controlled substance," Mr. Cook said.

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