The Wisconsin fraternity busted for allegedly hazing teens in its basement in a sick ritual had been booted from University of Wisconsin-Madison for a raft of violations — including getting a 17-year-old liquored up to the point of needing detox.

Cops raided the local house of Alpha Epsilon Pi Wednesday night and found 30 half-naked teen pledges smeared in condiments and huddled in a sweltering, filthy basement, the Madison Police Department said.

UW-Madison had put the frat on probation in 2013 after a party in which a 17-year-old boy and another guest were rushed to detox, university records show.

Even under probation, the rowdy frat continued to rack up booze violations.

“Subsequently, the organization was found responsible for four additional incidents involving events and/or alcohol while it was suspended or on alcohol restriction,” the university wrote.

UW-Madison finally cut ties to the organization in 2015 — but the shenanigans didn’t stop.

This is a developing story. Please check back for updates.