This isn't what library officials mean when they say they want patrons to expand their mind.
Salt Lake City police made 10 arrests at the Main Library downtown for people selling marijuana in the building.
Complaints came in that people were selling the drug in the library lobby and in the downstairs area, as well as outside. Undercover officers confirmed the complaints over a two-week investigation, nabbing the 10 dealers.
"We focused more on the dealers than the buyers, because that's more serious," said Sgt. Robin Snyder of the Salt Lake City Police Department. Snyder wasn't sure whether the suspects had previous drug arrests.
Those arrested were different from people who have been caught dealing drugs at Salt Lake City's Pioneer Park, Snyder said.
"It's younger white males instead of the people that were dealing [at Pioneer Park]," she said. "Down at Pioneer Park the drug is crack. It's a younger crowd.
Police plan to continue undercover work, as well as relying on guards at the library to keep an eye out for drug dealing.