Mariana Dale/KJZZ

University of Arizona's campus.

Tuesday is move-in day for first year students at the University of Arizona.

The university has enacted new safety measures following the shooting of a professor on campus last year.

UA Chief Safety Officer Steve Patterson says millions of dollars have been spent to implement hundreds of recommendations. One such change has been the installation of electronic locks to limit building access.

“If there were some sort of lockdown procedure going on, some sort of significant event going on, University of Arizona Police Department could for all intents and purposes lock down the campus within minutes,” he said.

Patterson added that his office will be communicating more with parents, students and staff through emails and the school’s safety website.