LIVERMORE -- Following a nearly two-month investigation, Livermore police served a search warrant Thursday afternoon and shut down the Tree of Life medical marijuana dispensary.

Officers seized marijuana, more than $15,000 in cash, two pounds of bulk marijuana and "a large quantity of individually wrapped packages of marijuana," said Livermore police spokesman Officer Steve Goard. "It will take a long time to go through."

The dispensary owner was not immediately available for comment.

Tree of Life opened in early January at Airway Boulevard and Isabel Avenue, despite the fact Livermore has had an ordinance prohibiting medical marijuana dispensaries since 2007.

Code enforcement officers served the pot club with a compliance order on Jan. 23 and returned with police on Feb. 12, issuing a citation and a $100 fine.

The owner was advised that the business was illegal "on (Jan.) 23rd and he was asked to stop, and he refused," Goard said.

"We believe, on what we have so far, he's in violation of city law, state law, and he's not even following the (state attorney general's guidelines for dispensaries)."

During the investigation, Goard said detectives found evidence the dispensary pot club was operating as a for-profit business.

"We realized they were being deceitful in how they started," Goard said.

Special operations units and detectives arrived at the club to serve the warrant around 1 p.m. Afterwards, Goard said a steady flow of customers were told the dispensary had been shut down, effective immediately.

Tree of Life's attorney Mitch Abdallah said he hadn't had the chance to review the warrant and couldn't comment on the raid but did address the investigators' assertions.

"It's clearly a nonprofit venture," Abdallah said. "The city's got it wrong on that. The characterization that they're not following the attorney general's guidelines is totally off base."

No arrests were made, but authorities expect charges to be forthcoming, Goard said.

Contact Jeremy Thomas at 925-847-2184. Follow him at Twitter.com/jet_bang.