Real-World Performance Gaps in K–12 School Security Preparedness

Real-World Performance Gaps in K–12 School Security Preparedness

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Targeted violence in kindergarten through 12th grade (K–12) schools continues to generate national concern and policy reform. Research from the U.S. Secret Service and the National Threat Assessment Center demonstrates that most school attackers display observable behaviors prior to violence and that multidisciplinary behavioral threat assessment teams are central to prevention (Fein et al., 2002; Vossekuil et al., 2004; National Threat Assessment Center [NTAC], 2018, 2019, 2021). Behavioral threat assessment is widely regarded as a best practice in school safety planning.

Prevention efforts do not eliminate the need for reliable emergency response systems. Environmental design principles have long informed school safety through Crime Prevention Through Environmental Design (CPTED), which emphasizes natural surveillance, controlled access, and territorial reinforcement (Schneider et al., 2000). National guidance endorses layered security strategies such as controlled entry points, reliable communication systems, and interior door locking capability (NTAC, 2018, 2019). However, the protective value of these measures depends on whether they function consistently in daily practice.

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Research across fields shows that adopting policies and procedures does not guarantee consistent follow-through under stress (Fixsen et al., 2005). Systems that appear sound on paper may break down if not periodically tested. While prior scholarship has examined perceptions of school safety and the psychological effects of security measures, less attention has focused on whether core emergency infrastructure performs reliably during time-compressed incidents.

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The central argument of this article is that although many K–12 institutions adopt recommended safety practices, on-site verification frequently reveals gaps between stated policies and real-world performance. Rather than evaluating theoretical design, this analysis examines whether security measures operate reliably under realistic conditions.

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Method

Design

This study employed a retrospective qualitative synthesis of recurring operational vulnerabilities identified during security assessments conducted between 2013 and 2025. Assessments were originally conducted as part of professional preparedness training and consultation rather than as prospective research.

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Sample

Assessments occurred at 34 instructional campuses in Los Angeles and Ventura Counties. Some of the 34 campuses were evaluated more than once across the 12-year period, typically in conjunction with repeat training engagements or follow-up consultation. The present analysis synthesizes recurring themes across sites rather than treating each visit as an independent observation. When campuses were evaluated more than once, themes were consolidated at the site level to avoid overrepresenting repeat observations. Sites included public schools, private schools, and faith-based institutions providing formal K–12 classroom instruction.

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Procedure

Walkthroughs were conducted by trained law enforcement professionals with experience in school security and emergency preparedness instruction, including certified hemorrhage control training. Each assessment examined perimeter access control, entry procedures, interior door locking capability, communication systems, classroom protective capacity, emergency supplies, and building identification systems.

Observations included direct inspection and demonstration-based testing, such as unlocking gates or initiating public address announcements when feasible.

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Data Analysis

Standardized research instruments were not used at the time of assessment. The present findings derive from structured retrospective recall by multiple assessors who participated in the walkthroughs. Themes were retained only when independently identified by multiple assessors across different campuses and time periods. This cross-observer agreement requirement was used to reduce the likelihood that isolated experiences shaped findings.

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Procedures were often described verbally rather than documented in formal written policy. Frequency estimates are approximate and illustrate recurring patterns rather than prevalence rates.

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Results

Across assessed campuses, recurring safety gaps emerged in six areas: access control, interior locking capability, communication systems, classroom protective capacity, emergency medical supplies, and discrepancies between administrative perceptions and operational conditions. Although some campuses were evaluated more than once, consistent evidence of widespread structural modification was not observed. Anti-latching devices continued to be used, and underlying hardware configurations generally remained unchanged.

 

Access Control

Assessors observed variation in entry control practices. Side gates described as locked were sometimes unsecured. Key control failures occasionally prevented gates from being opened promptly. Such breakdowns may compromise evacuation or lockdown procedures during time-sensitive incidents.

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Interior Locking Capability

Assessors reported that classroom doors often could not be locked from the interior without hallway exposure. Most schools relied on anti-latching devices, either commercially manufactured or improvised. The intended practice was to keep the door locked but not latched during the school day, allowing a teacher to remove or shift the device so the door would latch without stepping into the hallway.

In most cases, doors were locked behind the anti-latching device as intended. In a small number of cases, however, doors were not locked at all. Although rare, these instances illustrate how routine practices can drift.

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Recent investigative findings from school shooting incidents have underscored the importance of ensuring that classroom doors are both locked and fully latched. A door that is unlocked or not fully secured can compromise lockdown effectiveness.

Under acute stress, fine motor skills decline and decision-making narrows (Arnsten, 2009). Even brief delays in securing a classroom may increase exposure during the initial moments of an attack, when assailants frequently move through hallways. In elementary settings, where evacuation is difficult, reliable interior locking is central to protection.

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At campuses evaluated more than once, anti-latching devices continued to be used, and underlying door hardware configurations were not replaced. This pattern may reflect financial constraints associated with retrofitting legacy facilities.

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Communication Systems

Administrators frequently reported campus-wide intercom capability. Testing revealed coverage gaps in restrooms, playgrounds, and modular classrooms. In some instances, staff were unfamiliar with system activation procedures.

Effective response depends on immediate notification. If some areas do not receive an alert, protective actions begin unevenly. Delays may slow lockdown and complicate coordination before law enforcement arrival.

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Classroom Protective Capacity

Modular classrooms constructed with lightweight materials may offer limited ballistic resistance. While schools are not designed as fortified structures, awareness of material limitations may inform internal cover guidance during lockdown procedures.

Emergency Medical Supplies

Emergency backpacks inside classrooms were common, but bleeding control equipment such as tourniquets and chest seals was often absent during initial visits. During subsequent follow-up visits at some campuses, these supplies had been added, suggesting that structured verification may prompt corrective action.

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Following the Hartford Consensus and the national Stop the Bleed initiative, rapid hemorrhage control is recognized as essential in reducing preventable death from penetrating trauma (Jacobs et al., 2013; Levy et al., 2022; Gowen et al., 2020). In active assailant events, emergency medical services may not immediately access injured individuals. Without bleeding control tools, staff cannot provide immediate lifesaving care.

 

Administrative–Operational Discrepancies

Differences frequently emerged between administrator descriptions and observed conditions. Demonstration-based testing revealed broken keys, unlocked doors, incomplete intercom coverage, or untrained staff. These findings do not suggest negligence. Rather, they illustrate how routine operations may drift from stated policies and procedures if not periodically verified.

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Discussion

Prevention research demonstrates the importance of threat assessment, reporting culture, and multidisciplinary coordination (Fein et al., 2002; Vossekuil et al., 2004; NTAC, 2018, 2019, 2021). Physical security measures are intended to support these efforts by limiting access and buying time.

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This study suggests that preparedness depends not only on adopting recommended measures but on ensuring real-world performance. Policies and procedures may create confidence. Hands-on verification reveals whether systems function under realistic conditions.

 

CPTED principles emphasize natural surveillance and controlled access. However, design features require consistent operational follow-through to maintain their intended protective effect. Without periodic verification, even well-designed systems may underperform.

 

These findings align with broader implementation research demonstrating that translating policy into effective practice requires ongoing monitoring (Fixsen et al., 2005). In school settings, this monitoring may involve simple but structured verification exercises.

 

Importantly, verifying basic safety functions does not require visible hardening or increased law enforcement presence. Many identified vulnerabilities were correctable through modest procedural adjustments and low-cost equipment additions. Verification can therefore occur in ways that preserve school climate while strengthening safety.

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Follow-up observations suggest that identifying vulnerabilities does not automatically translate into corrective action. While some campuses demonstrated increased awareness or procedural clarification after initial assessments, consistent structural modifications were not observed. Anti-latching devices continued to be used, and underlying door hardware configurations generally remained unchanged. In several cases, previously identified vulnerabilities appeared to persist years later. These patterns suggest that improving school preparedness involves more than identifying gaps. Organizational capacity, competing fiscal priorities, and legacy infrastructure constraints may influence whether recommendations are implemented. Verification may therefore be necessary for strengthening real-world performance, but it may not be sufficient without sustained institutional commitment and resources.

 

The recurrence of similar vulnerabilities across independent assessor recollections suggests that these themes were sufficiently salient to persist over time. The findings may reflect the broader challenge of aligning evolving safety expectations with legacy infrastructure designed under earlier threat assumptions.

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Preparedness should be understood not as the presence of equipment alone but as demonstrated reliability when seconds count.

 

Limitations

This study is based on retrospective qualitative synthesis and does not employ standardized audit instruments. Sites were assessed in response to training or consultation requests and do not represent a random sample. Although cross-observer agreement was required for theme inclusion, recall bias remains possible. The study does not estimate prevalence or evaluate causal relationships between identified vulnerabilities and incident outcomes.

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Future research should examine whether structured verification frameworks measurably improve emergency response performance during drills or simulations and whether improvements are sustained over time. Comparative designs could assess differences between campuses employing routine verification practices and those relying primarily on policy adoption. Such research would help determine whether verification functions merely as an awareness tool or as a sustained driver of organizational change.

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Conclusion

Structured on-site verification assessments across public, private, and faith-based K–12 instructional campuses reveal recurring gaps between stated preparedness practices and real-world performance. Integrating behavioral threat assessment with systematic verification of physical security and emergency medical readiness may strengthen comprehensive preparedness efforts.

Strengthening school preparedness may ultimately depend less on the expansion of policy frameworks and more on ensuring that existing systems perform reliably when tested under realistic conditions.

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References

• Arnsten, A. F. T. (2009). Stress signalling pathways that impair prefrontal cortex structure and function. Nature Reviews Neuroscience, 10(6), 410–422. https://doi.org/10.1038/nrn2648

• Fein, R. A., Vossekuil, B., Pollack, W., Borum, R., & Modzeleski, W. (2002). Threat assessment in schools: A guide to managing threatening situations and to creating safe school climates. U.S. Secret Service & U.S. Department of Education. https://www.secretservice.gov/sites/default/files/2020-04/ssi_guide.pdf

• Fixsen, D. L., Naoom, S. F., Blase, K. A., Friedman, R. M., & Wallace, F. (2005). Implementation research: A synthesis of the literature. University of South Florida.

• Gowen, J. T., Sexton, K. W., Thrush, C., Privratsky, A., Beck, W. C., Taylor, J. R., Davis, B., Kimbrough, M. K., Jensen, H. K., Robertson, R. D., & Bhavaraju, A. (2020). Hemorrhage-control training in medical education. Journal of Medical Education and Curricular Development, 7, 2382120520973214. https://doi.org/10.1177/2382120520973214

• Jacobs, L. M., Wade, D., McSwain, N. E., Butler, F. K., Fabbri, W., Eastman, A., Conn, A., & Burns, K. J. (2014). Hartford Consensus: a call to action for THREAT, a medical disaster preparedness concept. Journal of the American College of Surgeons, 218(3), 467–475. https://doi.org/10.1016/j.jamcollsurg.2013.12.009

• Levy, M. J., Krohmer, J., Goralnick, E., Charlton, N., Nemeth, I., Jacobs, L., & Goolsby, C. A. (2022). A framework for the design and implementation of Stop the Bleed and public access trauma equipment programs. Journal of the American College of Emergency Physicians Open, 3(5), e12833. https://doi.org/10.1002/emp2.12833

• National Threat Assessment Center. (2018). Enhancing school safety using a threat assessment model: An operational guide for preventing targeted school violence. U.S. Secret Service. https://www.secretservice.gov/protection/ntac

• National Threat Assessment Center. (2019). Protecting America’s schools: A U.S. Secret Service analysis of targeted school violence. U.S. Department of Homeland Security. https://www.secretservice.gov/sites/default/files/2020-04/Protecting_Americas_Schools.pdf

• National Threat Assessment Center. (2021). Averting targeted school violence: A U.S. Secret Service analysis of plots against schools. U.S. Department of Homeland Security. https://www.secretservice.gov/sites/default/files/reports/2021-03/USSS%20Averting%20Targeted%20School%20Violence.2021.03.pdf

• Schneider, R. H., Walker, L., & Sprague, J. (2000). Safe school design: A handbook for educational leaders. National Clearinghouse for Educational Facilities.

• Vossekuil, B., Fein, R. A., Reddy, M., Borum, R., & Modzeleski, W. (2004). The final report and findings of the Safe School Initiative: Implications for the prevention of school attacks in the United States. U.S. Secret Service & U.S. Department of Education. https://www2.ed.gov/admins/lead/safety/preventingattacksreport.pdf