Grow, Gift, Repair

Illicit market thriving

Three people from California at Logan Airport, their suitcases stuffed with 150 pounds of pot. Twenty marijuana bags delivered to a Dorchester office. And three houses — in Braintree, Quincy, and Westford — empty save for dozens of cannabis plants.

So much for putting the drug dealers out of business.

More than two years after Massachusetts voters legalized marijuana, the illegal market remains stubbornly robust: Some 75 percent of the pot sold in the state this year will be under the table. The major impediment has been the achingly slow rollout of licensed pot shops, and at the current rate it could take another three years or more before enough stores are open to make an appreciable dent in the black market.