LaBarbera, who is with a group called Americans for Truth about Homosexuality, and Bill Whatcott were distributing anti-gay literature on the campus.
Before their arrival, the university issued a news release saying the pair would be monitored to ensure they did not engage in any activity that would promote hatred.
At one point, with news cameras rolling, an unidentified university official approached Whatcott and LaBarbera and asked them to leave. During that encounter, Whatcott said he had attempted to get permission to set up an information table and, since he was denied, proceeded to set up a table anyway.
"I'm not leaving," Whatcott told the official, "You guys are intolerant and should be ashamed of yourselves for shutting down our message without even considering it."
A short while later, several Regina police officers arrived and Whatcott and LaBarbera were handcuffed and taken off campus.
"The idea that you can't have an open debate on homosexuality on a college campus and some speech code is brought in, to kick people off ... seems to me to be pretty undemocratic," LaBarbera said.
On Friday, LaBarbera was briefly detained at the Regina airport, but was allowed into Saskatchewan to participate in an anti-abortion conference in Weyburn on the weekend.