School Shooting Resources for Prevention, Response, Mitigation, and Recovery

The following recommended practices and related resources will help schools address the threat of active shooters as well as other K-12 security concerns.
Published: May 12, 2025

This article is regularly updated to include new information and resources.


While statistically rare, all K-12 campuses must prepare for the potential of a school shooting. No matter the type of shooting, whether random, targeted, or the result of a dispute, knowing where to start can be overwhelming, and leading practices and requirements are constantly changing.

To aid K-12 leaders in their safety planning, this article covers many of the recommended practices that schools should adopt to prevent, mitigate, respond to, and recover from active shooter attacks as well as other campus security incidents. It also provides helpful resources for each phase of a safety incident.

No school security program is infallible, and there are things in our communities, as well as state and federal laws, that schools can’t control. The following practices, however, should decrease your school’s chances of a foreseeable tragedy happening on campus, including a school shooting. They should also mitigate the impact on your campus community should an incident occur.

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Improved School Access Control

Access control is arguably the most important aspect of school safety. If possible, schools should have a secure vestibule that funnels all visitors through one entrance.

When bolstering access control, also ensure first responders, such as law enforcement and fire, are still able to access campus during a lockdown. Do they have keys, access cards, or some other way they can quickly enter a classroom, office, or any area on campus experiencing a security or safety issue? This will help them more effectively respond to situations, such as a barricaded suspect, fire, etc.

Here are some articles that offer tips for improving access control in schools:

Now let’s break down the different categories of school access control.

Visitor Management in Schools

Installing a visitor management system that screens guests is also recommended. These systems both help flag people who shouldn’t be there and also help schools keep track of who is in the building should an emergency occur.

Here are some resources for implementing visitor management systems:

Install Locks on All Classroom Doors

It is recommended that schools install locks on all classroom doors that lock from the inside. Be sure to follow all applicable codes and laws, such as the Americans with Disabilities Act (ADA), National Fire Protection Association (NFPA) codes, etc.

Here are some locking lessons learned from the Robb Elementary School mass shooting.

Window Security Film on School Windows

Consider installing window security film in appropriate areas, being careful not to hinder building evacuation during emergencies.

Each year, Campus Safety asks our readers about various campus security technologies they use, including glass window and door security. Here are our latest findings:

Metal Detectors in School

School shootings are commonly carried out by people who are supposed to be in the building. While an often hot-button topic, metal detectors have prevented guns and other weapons from entering K-12 campuses. Consider randomly using weapon detection technology during school hours.

Here are several resources on metal/weapons detection:

Other School Security Technologies: Panic Alarms, Emergency Notification, Security Cameras

While access control is a school’s first line of defense against intruders, there are other security technologies that should be implemented.

Adopting panic alarms and buttons allow teachers and other staff members to call for help when there is an emergency, mitigating or even preventing damage. View Campus Safety’s latest Panic Alarm and Mobile Duress System/App survey to see how other campuses are implementing these technologies.

Be sure to install and/or update existing emergency communication and emergency notification equipment. Here is a recent emergency communication deep dive:

Deploy security cameras that campus police and/or local law enforcement can tap into during an incident. The evidence provided by video surveillance systems is also extremely useful during investigations into incidents. Here is a recent video surveillance deep dive:

Adopting anonymous tip phone lines and text messaging services is also critical. It has been proven time and time again that these systems save lives. Here are some examples:

It is also important to develop and maintain relationships with students, faculty, staff, clinicians, nurses, and others in the community so they feel comfortable reporting concerning behavior of others.

Staff and Student School Shooting Training

While security technology has significantly enhanced school safety, it is completely moot if staff aren’t properly trained on how to use the systems or students and staff aren’t shown how to respond during an emergency.

Here are some related recommendations:

Addressing Staff and Student Mental Health

Threat assessment is critical to violence prevention. Students or staff who commit violence often exhibit concerning behavior. Investing in mental health resources and systems that help schools track potentially concerning behavior can mitigate potential violence.

Here are some resources for supporting student and staff mental health:

Lessons Learned from School Shootings

While preventing violence is the main goal, it is impossible to prevent all incidents. That is why it is crucial that we study incidents of school violence to learn everything we can on ways to prevent or mitigate similar incidents in the future.

Here are some article links to lessons learned from school shootings:

Additional School Safety Best Practices

Some additional school safety best practices are as follows:

  • Hire a qualified and experienced security contractor/systems integrator that understands and follows all codes and regulations to install all security, public safety, and life safety systems and equipment.
  • Partner with local first responders so they can effectively and quickly respond to a campus emergency. This should happen long before an incident happens.
  • Hire school resource officers (SROs) or campus police officers, provide them with appropriate training.
  • Adopt Crime Prevention Through Environmental Design (CPTED) 
  • Conduct background checks on all teachers, staff, volunteers, and vendors.
  • Have on staff enough school psychologists, social workers, and counselors so individuals exhibiting concerning behavior get the help they need before they resort to violence against themselves, against others, or both.
  • Develop emergency plans and keep them current.
  • Have the ability to effectively and quickly reunite students with their parents or legal guardians.
  • After an incident, provide long-term mental health services to students, staff members, and faculty.

Here are some resources that support these best practices:

This list is in no way complete or perfect. Like all of you, we at Campus Safety are constantly looking for new and better ways to make campuses safer. That said, it’s a good start for novices to campus security. It also serves as an important reminder to school security veterans.

Strategy & Planning Series
Strategy & Planning Series
Strategy & Planning Series
Strategy & Planning Series
Strategy & Planning Series