. >> matthew cohen is the owner. the fact he is open about the farm isn't special, but what is special about he and growing number of pot farms get their product to patients. >> that is direct delivery, not dispensaries, like we see in san francisco and other places, but people who will just bring it straight to your home or office or other locations. >> michael montgomery uncovered a growing trend in the state, medical marijuana delivery services. >> there is 750 services advertise ought internet for direct delivery of medical marijuana. what is interest becoming that number, it's increased by about 40% since february. >> california watch is part of the independent non-partisan center for investigative reporting. they shot much of the video for the story. he says his poll delivery business is growing 30% a month. >> i think we could take on quite a few more farms and grow a lot larger. >> he has in licenses in every county where his company delivers. >> california watch went along with cohen on several deliveries in