The Los Angeles County district attorney's office says drug task force agents served a state search warrant at the Organica Collective in Culver City, at the Overland Gardens Collective in West Los Angeles and at a home on Wednesday.
Drug Enforcement Administration spokesman Jose Martinez says agents from several agencies seized about 100 pounds of marijuana, about 200 live plants and about $100,000 in cash.
Martinez says the owner of the dispensaries, 50-year-old Jeffrey Joseph, was arrested at his home in Topanga Canyon.
He says agents shot a pit bull during the raid but the dog is expected to survive.
No further details were released.
Here's more from CBS Station KCBS in Los Angeles: