OLD TAPPAN - Many school districts across the state have beefed up security in the wake of the Newtown, Conn. shootings, adding levels of protection to keep students safer.

At Northern Valley Regional in Old Tappan, students and faculty enter the building through the front door. In the lobby there is a guard, who is either a retired or active police officer on duty from 6:30 a.m. until 6:30 p.m.

Guests must be buzzed in, and have to visit the security desk where they will be asked for ID. A visitor's pass with their photo must be worn inside the school.

Northern Valley Superintendent Chris Nagy says 26 additional security cameras have been placed in both of the district’s schools.

Administrators now carry walkie-talkies, which allow them to communicate directly with police if there's a problem.

The superintendent says the district will continue to evaluate security and could add more measures in the future.