It’s important to remember that no single layer of security can guarantee complete safety, but by implementing a multi-layered approach, schools can help minimize the risks and create a safer environment for everyone on campus. Schools should also regularly review and update their security measures to ensure they are effective and responsive to changing threats.

The best multi-layered approach for school security today involves a combination of physical, technological, and procedural measures. Here are some examples of each layer:

1. Physical security measures: This includes access control systems, video surveillance cameras, and perimeter fencing. These measures can help prevent unauthorized access to school buildings and grounds, as well as detect and respond to potential threats.
2. Technological security measures: Schools should use the latest technologies to monitor and protect their networks, systems, and data. This includes firewalls, antivirus software, intrusion detection and prevention systems, and other cybersecurity tools.
3. Procedural security measures: Schools should have clear and comprehensive emergency response plans that are regularly reviewed and updated. These plans should include procedures for responding to various types of emergencies, such as natural disasters, medical emergencies, and active shooter situations. Staff and students should also receive regular training on these procedures.
4. Behavioral threat assessment: Schools should conduct behavioral threat assessments to identify potential threats before they become dangerous. This involves identifying concerning behaviors, investigating the situation, and providing support to the student or individual if needed.
5. Mental health support: Schools should also prioritize mental health support for students and staff. This can include counseling services, mental health resources, and training for staff to identify and respond to mental health concerns.
6. Community partnerships: Schools should work closely with local law enforcement agencies and community organizations to strengthen their security measures and response capabilities.

By implementing a multi-layered approach that incorporates these measures, schools can help create a safe and secure environment for everyone on campus. However, it is important to note that no single approach can completely eliminate all risks, and schools must remain vigilant and adaptable in their security planning and implementation.