On May 29, 2006, the Quezon City Engineering Office conducted investigations on allegations of illegal digging within the campus to search for
Yamashita's gold. The excavation, which did not apply for necessary permits, caused concerns for the safety of the campus. The Quezon City government decided on September not to close PSBA as no evidence of excavation was found. PSBA announced on September 20, 2013, that the Quezon City campus would be closed in October 18, the end of the academic year's first semester, due to “serious business losses" for the past eight years in a unanimous decision. A letter from the
Commission on Higher Education stating that PSBA-QC can only close after the end of an academic year was announced in an open forum on September 30. Student groups of PSBA-QC filed a temporary restraining order on the closure of the campus on October 10. The 20-day temporary restraining order was issued on October 17. On November 7, the Quezon City Regional Trial Court decided that the school would remain open indefinitely as there was weak evidence of financial losses. ==References==