Famed lawyer Alan Dershowitz threatened legal action against the University of California Berkeley for its "discriminatory" on-campus speaker policy, which he says disadvantages guests who aren't "way hard left," according to a report Tuesday.

"All the departments are all hard left departments," Dershowitz told LawNewz.com. "They are much more likely to invite hard left speakers. That results in content-based discrimination."

Dershowitz sent a letter to the university's provost after the institution prevented him from speaking about Israel at the request of a student organization because, as a "high-profile" speaker, they didn't give staff eight weeks notice.

That requirement is usually waived for guests invited by the school's departments, Dershowitz said.

"If a pro-jihadi terrorist wants to speak, the Near Eastern Studies Department invites them and they can," he said. "But if a peace loving two-state solution advocate like myself with a 50-year academic history wants to speak, I have to [wait] eight weeks."

Dershowitz is now scheduled to address an audience at Berkeley in mid-October thanks to an invitation extended by the Dean of UC Berkeley's Law School.

The Harvard Law School professor did not immediately return the Washington Examiner's request for comment.

But Dan Mogulof, UC Berkeley's assistant vice chancellor, told the Washington Examiner the school's policy is "content and perspective neutral, with the criteria that trigger the eight-week advance notice requirement based solely on objective measures, such as audience size."

"We are committed to supporting all of our student organizations and their ability to bring speakers of their choice to campus," Mogulof said. "What we cannot do is afford special treatment to certain student organizations that we could not offer to all. The best way to ensure equitable treatment is through adherence to existing policy."