DALTON, Ga. — Dalton Public Schools will have at least four more school resource officers (SROs) for the next school year under an agreement approved 4-0 by the Board of Education this week.

The agreement must still be approved by the City Council.

The additional SROs are part of a broad school safety plan the board is putting in place following Dalton High School being placed on lockdown on Feb. 28 when police say teacher Randall Davidson fired a bullet from a revolver through a classroom window while in the classroom alone. No one was injured. The board’s plan also calls for intruder locks at Dalton High, Dalton Middle School and Morris Innovative High School; upgrading the public address system at Dalton High; and adding card reader access to all exterior doors at the high school.

The agreement calls for the school system to increase the number of SROs immediately from three to seven. The school system will pay 75 percent of the salary and benefits of the SROs, but the officers are still considered employees of the police department.

Two officers will be at Dalton High, up from one. Another officer will be at Dalton Middle and another at Morris. The three other officers will each be responsible for two of the system’s six elementary schools.