The short answer
There is no universal officer-to-student ratio that safely determines school staffing. The number should follow a site-specific assessment of campus size, building count, entrances, grade levels, enrollment, arrival and dismissal patterns, events, prior incidents, emergency-response time, and the duties assigned to each position. One officer cannot simultaneously remain at a fixed entrance, patrol distant buildings, manage traffic, and respond elsewhere.
What to know
Start by mapping the functions the school expects: entrance coverage, perimeter checks, parking and bus zones, student or visitor calls, event coverage, patrol time, and emergency response. Determine which tasks require sworn law enforcement, which are appropriate for private security, and which remain administrative responsibilities. Account for breaks, absences, supervision, after-school activities, and substitute coverage.
Arizona’s Department of Education promotes a comprehensive school-safety approach that includes preparedness, physical security, mental health, and school climate; officer headcount is only one component. Access controls, communications, trained staff, emergency plans, behavioral-threat assessment, and partnerships all matter. Arrow should conduct or review a campus assessment before recommending staffing and should revisit the plan when enrollment, layout, schedules, or risks change.