But John O. Horst, director of facilities and administrative services for Radcliffe College, said the Office of Undergraduate Admissions and Financial Aid is in charge of the alarm.
"They put in the alarm system and since we took over management of the building in July 1998 we have been responsible for maintenance of common areas and the exterior of the building, but the alarm system is in their office space," he said.
Horst said the broken alarm was first brought to his attention two months ago.
"We have been in the process of looking into replacing the alarm system and met with the police two weeks ago to discuss the matter," he added.
Riley said he only became aware that the alarm system was broken yesterday morning. He said he did not know when it was last working.
Following the crime and the discovery that the alarm system has been and continues to be broken, HUPD has heightened its presence in Radcliffe Yard and the Quad. Riley said that starting yesterday, there is now an officer on duty at Byerly Hall all day long, and HUPD patrols the area at night.
"We have patrols in that area...because of the anxiety surrounding the crime," Riley said. "I beefed them up [yesterday} morning when I found out the alarm system was down."