Robin Rice, Customer Success Director at SoundThinking outlines how to protect your facility in 2025.
It’s no longer limited to a single solution. As risks grow more complex, facilities need more than legacy measures. A layered approach – combining deterrence, detection and rapid response – is what sets modern security strategies apart.
This article explores what physical security layering is, why it matters and how it can transform your approach to facility safety.
Physical security layering uses multiple, overlapping protective measures that work together to prevent, detect and respond to threats.
When one layer fails, others remain active. These layers discourage threats, improve early detection and enable faster, more coordinated responses.
Traditional security often relied on physical barriers like fences and gates – elements many organizations now avoid because they make facilities seem unwelcoming.
Basic surveillance cameras, static signs and manual monitoring served their purpose, but they’re no match for today’s more sophisticated threats.
That’s why many facilities are rethinking their approach – from static deterrents to dynamic, data-driven systems that work together across multiple entry points.
Strong physical security begins before a potential threat enters the premises. At the perimeter, a mix of thoughtful design and smart technology can serve as the first line of defense.
Physical features like protective bollards help prevent vehicle ramming attacks and guide foot traffic through designated entrances.
Good lighting, especially in parking lots and entry zones, remains one of the most effective and affordable ways to deter crime – improving visibility for both people and cameras.
Surveillance cameras – both standard and license plate recognition (LPR) – add critical visibility. While regular cameras offer broad coverage, LPR systems provide specific intelligence: identifying suspicious vehicles, recognizing plates tied to banned individuals or former employees and issuing real-time alerts when flagged vehicles appear.
Some systems also support secure data sharing with law enforcement, enabling coordinated response in active or unfolding scenarios.
In many facilities, LPR systems also support post-incident investigations, allowing security teams to search historical vehicle data after theft, assault or other incidents.
And in high-traffic environments like hospitals, LPR insights can help optimize operational flow – monitoring volume in ER drop-off zones or patient parking to better manage congestion.
“Before we had this system,” one hospital security director noted, “we might spot a suspicious vehicle after something happened. Now we know about potential problems before they reach our doors.”
Clear messaging at entrances sets expectations immediately. Signs and audio recordings that explicitly prohibit weapons eliminate ambiguity.
For healthcare settings, where staff face rising violence, reminding visitors that assaulting healthcare workers is a felony can be an effective deterrent.Â
Two-way radios remain essential for security teams to coordinate quickly.
Remotely activated door locks give staff crucial control if a threat is identified. And having protocols to momentarily slow visitors’ entry – whether through check-in procedures or strategic layouts – gives security teams precious seconds to respond.
AI-powered weapons detection systems are equally redefining entry security. Unlike conventional metal detectors, which are often visible and intrusive, many modern solutions are designed to blend into the built environment by embedding into architectural features like planters or bollards or remaining entirely out of sight – creating a seamless visitor experience.
These systems are engineered for high-traffic environments, allowing individuals to move through quickly without stopping. Some weapons detection designs use passive sensors that don’t interfere with medical devices and their spacing allows for accessibility and better crowd flow.
When a potential threat is detected, advanced systems use 3D imaging and magnetic moment data to scan multiple individuals at once. Alerts are reviewed and verified by offsite analysts in under ten seconds. If confirmed, security teams receive a real-time threat level alert, enabling a rapid, focused response.
Weapons detection systems are especially relevant in healthcare environments such as hospitals, which are facing a rise in workplace violence. A meta-analysis of 47 observational studies reported that 62.4% of healthcare professionals have experienced workplace violence, with 13.7% experiencing physical assault.
Hospitals present unique challenges: traditional metal detectors can heighten anxiety or signal an unsafe environment.
Discreet, high-throughput screening tools help healthcare facilities maintain a welcoming atmosphere while increasing safety and readiness.
Preparing for layered security starts with understanding your facility’s unique risks.
First, review internal documentation to uncover hidden vulnerabilities. Then, request a crime report from local police to identify nearby risks and crime patterns. This helps stakeholders ask focused questions and plan with clarity.
For example, if there’s a high number of car break-ins, security teams may want to assess whether the parking lot has sufficient lighting or needs an improved layout to discourage loitering.
Solutions could include better lighting, working with public works departments on cleanup or beautification, or enhanced surveillance coverage.
If reports indicate a high rate of gun crime, measures might include clear weapons signage, LPR systems at entrances, two-way communication tools, automatic locking mechanisms and AI-powered screening technologies.
Detection is only one part of the equation – response is just as critical. Security personnel should be trained to handle alerts with calm professionalism.
One effective protocol involves a scripted, respectful approach: “Hello, would you be so kind to step over here with me? You just walked through a weapon detection system, and it sent us a notification. Do you have any guns, knives, mace, tasers or any other weapon in your possession?”
If the answer is no, a bag search and wanding may follow. If a weapon is found, the individual can be reminded of the no-weapons policy and asked to return the item to their vehicle.
If the individual acknowledges carrying a weapon, staff can calmly explain the return policy and resume screening upon their return.
The most effective security strategies involve cross-functional coordination. Executive leadership is needed for budget support and strategic alignment.
Legal and risk teams weigh in on liability. Security professionals understand day-to-day operations. Facility managers and IT teams must ensure that any new systems integrate smoothly into the physical and digital environment.
As one client’s security director noted, “The difference between success and failure wasn’t the technology – it was getting everyone in the room before we started.”
Successful implementation follows a clear progression: assess your unique risks, secure leadership buy-in with supporting data, select solutions that fit your environment, assign a dedicated project manager and build a communication plan so both staff and visitors know what to expect.
Security isn’t about installing a single tool – it’s about creating multiple layers of protection that work in harmony. When designed thoughtfully, these layers not only protect people and assets but enhance the overall experience by providing safety without intrusion.
The most effective systems often go unnoticed – seamlessly embedded into the facility’s environment. As facilities evolve, so must their security strategies – moving away from visible barriers and toward integrated systems that can identify and manage threats before they escalate.
Modern tools make this possible – and while the technology will evolve, the core principle remains unchanged: a layered approach outperforms a single line of defense.
This article was originally published in the June edition of Security Journal Americas. To read your FREE digital edition, click here.