Skip to main content
  • Personal
  • Business
  • Foundation
    Close
  • Select Region
    • Global
    • India
    • MENA
  • mySHRM Login
  • MySHRM
    • Dashboard
    • Account
    • Logout
SHRM
  • Membership
    • Membership

      As a SHRM Member®, you’ll pave the path of your success with invaluable resources, world-class educational opportunities and premier events.

      Membership Tiers
      • Professional
      • Student
      • Global
      • Executive
      • Business
      Membership Benefits
  • Learning
    • Learning

      Build capability, credibility, and confidence to influence strategy, shape culture, and drive measurable business impact.

      SHRM Certification

      Demonstrate your ability to apply HR principles to real-life situations.

      • Choosing Your Certification
      • SHRM-CP
      • SHRM-SCP
      • How to Get Certified
      • Prepare for the Exam
      • Recertification
      Seminars

      Stand out from among your HR peers with the skills obtained from a SHRM Seminar.

      Specialty Credentials

      Demonstrate targeted competence and enhance your HR credibility.

      Educational Programs

      Designed and delivered by HR experts to empower you with the knowledge and tools you need to drive lasting change in the workplace.

      • Essentials of HR
      • eLearning
      Qualifications

      Gain a deeper understanding and develop critical skills.

  • Attend
    • Events

      Demonstrate your ability to apply HR principles to real-life situations.

      • SHRM26 Annual Conference & Expo
      • The AI+HI Project 2026
      • Talent 2026
      • Linkage Institute 2026
      • BLUEPRINT 2025
      State Conferences

      Attend a SHRM state event to network with other HR professionals and learn more about the future of work.

      Seminars

      Stand out from among your HR peers with the skills obtained from a SHRM Seminar.

      Webinars

      Learn live and on demand. Earn PDCs and gain immediate insights into the latest HR trends.

  • Resources
    • Resources

      Stay up to date with news and leverage our vast library of resources.

      • Flagships
      • HR Research
      • Legal & Compliance
      • Latest News & Trends
      • Tools & Guides
      • Webinars
      HR Topics
      • AI in the Workplace
      • Civility at Work
      • Compensation & Benefits
      • Inclusion & Diversity
      • Talent Acquisition
      • HR Technology
      • Workplace Violence Prevention
      Educational Programs

      Designed and delivered by HR experts to empower you with the knowledge and tools you need to drive lasting change in the workplace.

  • Community
    • Find a SHRM Chapter

      Easily find a local professional or student chapter in your area.

      • SHRM Northern California
      SHRM Connect

      Post polls, get crowdsourced answers to your questions and network with other HR professionals online.

      Membership Councils

      Learn about SHRM's five regional councils and the Membership Advisory Council (MAC).

      Volunteers

      Learn about volunteer opportunities with SHRM.

  • Shop
    • SHRM Store

      Shop for HR certifications, credentials, learning, events, merchandise and more.

      Workplace Essentials
      • SHRM Memberships
      • SHRM Certification
      • Specialty Credentials
      • HR Tools & Tech
      Education
      • Seminars
      • eLearning
      • Books
      Merchandise
      • Accessories
      • Apparel
      • Office & Home
Become a Member
Renew
Rejoin Now
Renew
Ask an HR Advisor
Close
  • Personal
  • Business
  • Foundation
  • Membership
    back
    Membership
    • Membership

      As a SHRM Member®, you’ll pave the path of your success with invaluable resources, world-class educational opportunities and premier events.

      Membership Tiers
      • Professional
      • Student
      • Global
      • Executive
      • Business
      Membership Benefits
  • Learning
    back
    Learning
    • Learning

      Build capability, credibility, and confidence to influence strategy, shape culture, and drive measurable business impact.

      SHRM Certification

      Demonstrate your ability to apply HR principles to real-life situations.

      • Choosing Your Certification
      • SHRM-CP
      • SHRM-SCP
      • How to Get Certified
      • Prepare for the Exam
      • Recertification
      Seminars

      Stand out from among your HR peers with the skills obtained from a SHRM Seminar.

      Specialty Credentials

      Demonstrate targeted competence and enhance your HR credibility.

      Educational Programs

      Designed and delivered by HR experts to empower you with the knowledge and tools you need to drive lasting change in the workplace.

      • Essentials of HR
      • eLearning
      Qualifications

      Gain a deeper understanding and develop critical skills.

  • Attend
    back
    Attend
    • Events

      Demonstrate your ability to apply HR principles to real-life situations.

      • SHRM26 Annual Conference & Expo
      • The AI+HI Project 2026
      • Talent 2026
      • Linkage Institute 2026
      • BLUEPRINT 2025
      State Conferences

      Attend a SHRM state event to network with other HR professionals and learn more about the future of work.

      Seminars

      Stand out from among your HR peers with the skills obtained from a SHRM Seminar.

      Webinars

      Learn live and on demand. Earn PDCs and gain immediate insights into the latest HR trends.

  • Resources
    back
    Resources
    • Resources

      Stay up to date with news and leverage our vast library of resources.

      • Flagships
      • HR Research
      • Legal & Compliance
      • Latest News & Trends
      • Tools & Guides
      • Webinars
      HR Topics
      • AI in the Workplace
      • Civility at Work
      • Compensation & Benefits
      • Inclusion & Diversity
      • Talent Acquisition
      • HR Technology
      • Workplace Violence Prevention
      Educational Programs

      Designed and delivered by HR experts to empower you with the knowledge and tools you need to drive lasting change in the workplace.

  • Community
    back
    Community
    • Find a SHRM Chapter

      Easily find a local professional or student chapter in your area.

      • SHRM Northern California
      SHRM Connect

      Post polls, get crowdsourced answers to your questions and network with other HR professionals online.

      Membership Councils

      Learn about SHRM's five regional councils and the Membership Advisory Council (MAC).

      Volunteers

      Learn about volunteer opportunities with SHRM.

  • Shop
    back
    Shop
    • SHRM Store

      Shop for HR certifications, credentials, learning, events, merchandise and more.

      Workplace Essentials
      • SHRM Memberships
      • SHRM Certification
      • Specialty Credentials
      • HR Tools & Tech
      Education
      • Seminars
      • eLearning
      • Books
      Merchandise
      • Accessories
      • Apparel
      • Office & Home
Become a Member
Renew
Rejoin Now
Renew
Ask an HR Advisor
  • Select Region
    • Global
    • India
    • MENA
SHRM
mySHRM Login
  • MySHRM
    • Dashboard
    • Account
    • Logout
Close

  1. Topics & Tools
  2. Workplace News & Trends
  3. Employee Relations
  4. Active-Shooter Security Drills Are 'Ineffective,' Researchers Find
Share
  • Linked In
  • Facebook
  • Twitter
  • Email

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus convallis sem tellus, vitae egestas felis vestibule ut.


Error message details.

Copy button
Reuse Permissions

Request permission to republish or redistribute SHRM content and materials.


Learn More
News

Active-Shooter Security Drills Are 'Ineffective,' Researchers Find

Most shooters, like the teen in the Santa Clarita high school shooting, are insiders

November 18, 2019 | Dana Wilkie

A group of people walking in a dark hallway.


​Employers may think that security drills can help save lives in the event of a mass shooting—like the one that happened Nov. 14 at a California high school—but two researchers argue that such measures aren't much help because most school and workplace shooters are insiders "well-rehearsed in the security procedures."

The 16-year-old suspected of fatally shooting two students and wounding three others at a Santa Clarita, Calif., high school was a student at the school. He shot himself after assaulting the others and later died. 

"As imperfect as [shooter] profiles are, we can use them to assess our current responses to mass shootings," wrote Jillian Peterson and James Densley in their research, which was published this month. "For example, school shooters are nearly always students of the school—so building design strategies and active shooter drills are ineffective because the shooter is an insider, well-rehearsed in the security procedures. Same goes for workplace shooters who typically are employees."

Peterson is an assistant professor of criminology and criminal justice at Hamline University in Minnesota. Densley is a professor of criminal justice at Metropolitan State University in Minnesota. The pair received a federal grant from the National Institute of Justice, part of the U.S. Department of Justice, to do the research, then created a mass-shooter database that goes back more than half a century.

The most common site for a mass shooting since 1966 is the workplace, they found, such as the one that occurred in May, when a Virginia Beach, Va., city employee killed 12 people at a municipal building.

In workplace shootings, the researchers noted, the great majority of the perpetrators are current or former employees who have access to the buildings, know how to move around them quickly and are familiar with security drills. The researchers suggest that, rather than relying on drills, school boards and employers increase investment in school- or employment-based mental health services and in training on crisis intervention and grief management.

"Eighty percent of perpetrators are in crisis prior to the shooting," the researchers wrote.

"Age restrictions … waiting periods, and background checks for all firearm sales may especially help prevent college shootings, where the majority of perpetrators are in a known crisis and legally purchase guns, even with a history of psychiatric hospitalization and a criminal record," they wrote.

Multiple Security Elements

Jack R. Plaxe is founder and managing director of Security Consulting Alliance LLC in Louisville, Ky. He acknowledged that "insider threats are some of the most difficult to manage" but noted that access badges and locks are only a small part of an effective security program.

"A program should have a variety of elements that work together," he said, "such as security and emergency action plans, security hardware and technology, security guards and staffing, policies and procedures, training, drills, and exercises."

A security program also should train employees to recognize signs that a worker may be thinking about violence, Plaxe added.

"It is essential that trained employees recognize this behavior and report it so that steps can be taken to intervene and mitigate the threat," he said. "I contend that if an employee showing signs of potential violence is allowed to continue down this path, the company has failed in its workplace-violence-prevention efforts."

Martha Boyd is a shareholder with law firm Baker, Donelson, Bearman, Caldwell & Berkowitz, PC, in Nashville, Tenn. She said the Virginia Beach shooting is a classic example of how access badges and locks aren't enough to deter an "insider" bent on violence.

"But the lessons we can take from the Virginia Beach shooting are that when employees know how to react to a shooting, lives are saved," she said. "Several employees in the municipal building on the day of that shooting ran out of the building to avoid the gunman, which is exactly what they should have done. Others barricaded themselves in a room—again, exactly what they should have done since they were unable to escape. No motive has been discovered for that shooting, and, while the shooter had some disciplinary issues, there did not appear to be any predictive behaviors like we've seen in other mass shootings."

She also acknowledged that training workers or students on how to react to a shooting is scary for them.

"It should be, because it's training for a potentially horrible scenario," she said. "It is certainly appropriate to consider whether the benefit of training is outweighed by the psychological impact, [but] I would think it depends on the age of the kids, psychological issues and other factors. It isn't as if the kids aren't hearing about it; they are—through parents, older siblings and the 24-hour news cycle. So what message are we sending when we don't offer them training? That there's nothing they can do, that they have no ability to affect an outcome, that they're sitting ducks."

For a dozen years, Thomas Mandler sat on the board of education for two Illinois high schools. He said schools should absolutely train students on how to respond to a shooting, even if such drills might be traumatizing for children.

Workers and students "still need to be prepared to act in an emergency," said Mandler, a partner with law firm Akerman LLP in Chicago. "Even if a former student [or worker] knows the drills, the damage done would be more limited if others are in safe places."

There could also be legal implications if an employer or school doesn't "protect against known threats," he said. 

HR Function Strategy
Labor & Employee Relations
Risk Management
Skills Training

Was this resource helpful?

Leave Feedback

Related Articles

(opens in a new tab)
News
How One Company Uses Digital Tools to Boost Employee Well-Being

Learn how Marsh McLennan successfully boosts staff well-being with digital tools, improving productivity and work satisfaction for more than 20,000 employees.

(opens in a new tab)
News
A 4-Day Workweek? AI-Fueled Efficiencies Could Make It Happen

The proliferation of artificial intelligence in the workplace, and the ensuing expected increase in productivity and efficiency, could help usher in the four-day workweek, some experts predict.

(opens in a new tab)
News
Rising Demand for Workforce AI Skills Leads to Calls for Upskilling

As artificial intelligence technology continues to develop, the demand for workers with the ability to work alongside and manage AI systems will increase. This means that workers who are not able to adapt and learn these new skills will be left behind in the job market.

HR Daily Newsletter

Stay up to date with the latest HR news, trends, and expert advice each business day.

Success title

Success caption

Manage Subscriptions
Our Brands

SHRM Foundation Logo
SHRM Executive Network Logo
CEO Circle Logo
SHRM Business Logo
SHRM Linkage Logo
SHRM Labs
Overview

  • About SHRM
  • Careers at SHRM
  • Press Room
  • Contact SHRM
  • Post an HR Job
SHRM Named to Newsweek's 2026 America's Top Online Learning Provider List
Advocacy

  • SHRM Advocacy
  • Federal Policies
  • State Affairs
  • Global Policy
  • Take Action
  • SHRM E2 Initiative
Brand Partnership

  • Partnership Opportunities
  • Advertise with Us
  • Exhibit & Sponsorship
  • Recertification Providers
  • Book a Speaker
Member Resources

  • Ask an HR Advisor
  • SHRM Newsletters
  • SHRM Flagships
  • Topics & Tools
  • Find an HR Job
  • Vendor Directory

© 2026 SHRM. All Rights Reserved
SHRM provides content as a service to its readers and members. It does not offer legal advice, and cannot guarantee the accuracy or suitability of its content for a particular purpose. Disclaimer

Follow Us

  • LinkedIn
  • Facebook
  • Twitter
  • Instagram
  • YouTube
Feedback

  1. Your Privacy Choices

  2. Terms of Use

  3. Accessibility

Join SHRM for Exclusive Access to Professional Content

SHRM Members enjoy unlimited access to articles and exclusive professional content resources.

Already a member? Login
Free Article

Login to unlock unlimited access or join SHRM today to get unlimited access to articles and member-exclusive resources.

Already a member? Login
Limit Reached

You've reached the limit of 1 free article this month. Join to access unlimited articles and member-only resources.

Already a member? Login
Free Article

Login to unlock unlimited access or join SHRM today to get unlimited access articles and member-exclusive resources.

Already a member? Login
Limit Reached

You've reached the limit of 1 free article this month. Join the Executive Network and enjoy unlimited content.

Already a member? Login
Unlock Your Career with SHRM Membership

Please enjoy this free resource! Join SHRM for unlimited access to exclusive articles and tools.

Already a member? Login
Join SHRM for Exclusive Access to Professional Premium Content

SHRM Members enjoy unlimited access to articles and exclusive professional premium resources.

Already a member? Login
Join SHRM for Exclusive Access to Student Content

SHRM Members enjoy unlimited access to articles and exclusive member resources.

Already a member? Login
Join SHRM for Exclusive Access to Executive Network Content

SHRM member enjoys unlimited access to articles and exclusive executive member resources.

Already a member? Login

Your membership is almost expired! Renew today for unlimited access to member content.

Renew now

Your membership has expired. Renew today for unlimited access to member content.

Renew Now

Your Executive Network membership is nearing its expiration. Renew now to maintain access.

Renew Now

Your membership has expired. Renew your Executive Network benefits today.

Renew Now