Last Friday, officials acknowledged a “troubling delay” in warning the campus community about allegations of drugging and sexual assault at the Sigma Nu fraternity house last month as criticism intensifies over the university’s handling of the crisis. The university has suspended the Sigma Nu chapter and is enforcing the Interfraternity Council’s voluntary stop to all fraternity social gatherings while the situation is being reviewed. An additional 12 reports of sexual assault and battery and nine reports of drugging taking place at various times, some allegedly involving other unnamed fraternities, have been filed since Oct. 21 crime logs from the USC Department of Public Safety. 24, with one also alleging she had been sexually assaulted, according to Oct. The university received six reports of students alleging they had been drugged at Sigma Nu on Sept. USC has been roiled by multiple allegations of drugging and sexual assault during parties at the university’s chapter of Sigma Nu and other unnamed locations.