DENVER (CBS4) – Coloradans can’t legally sell marijuana unless they are licensed by the state, but ads are now showing up on Craigslist that seem to be skirting the law.

CBS4 Investigator Rick Sallinger found people are giving the pot away for what some call “free.”

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The ads claim to be giving away the marijuana, but always with a twist. The ads have people seeking marijuana pay for the delivery, sponsor something, or make a donation.

One ad offers free medical marijuana at Bud’s Worm Farm. The ad states that people cannot legally buy the pot at this time, but he will give it away for sponsorship of his red wiggler worms. Sponsor 100 worms and get an 1/8th of an ounce of pot.

One man, who asked not to be identified, is a medical marijuana patient who wondered if it’s legal to obtain marijuana through such ads.

“I’d rather just call Craigslist and have them deliver to my door,” he said. “I don’t want it to be a police officer undercover and come and arrest me for solicitation of buying marijuana.”

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Another ad offers fresh and cured hash — not for sale, but for a donation of $60 a gram. Sallinger sent the person a text.

“I am interested in donations for hash, how does it work?” Sallinger texted.

The reply was, “I can meet you somewhere.”

Obtaining pot may quickly become a free for all in Colorado.

“Well, then I might start growing marijuana again and start selling it door to door, to be honest with you,” the medical marijuana patient told Sallinger.

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A spokesperson for the Department of Revenue told Sallinger the ads he provided didn’t appear to be from current medical marijuana providers and regulations for the sale of recreational pot have not been established yet.