Solution · Active threat response
Workplace violence prevention that acts before a threat reaches anyone.
Aggression detection, weapon recognition, badge-controlled perimeter, and lockdown automation, all gated by two-source confirmation so false positives don't burn the system.
- NDAA-compliant
- Platform-agnostic
- 1,000+ deployments over 15 years
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Workplace violence prevention is the layered system that catches a threat before it reaches a victim and contains it once a real event starts. Tec-Tel deploys camera-based aggression and weapon detection, badge-controlled perimeter and entry, license-plate alerts for restraining-order enforcement, and lockdown automation gated by two-source confirmation. Alerts route to security, HR, and law enforcement on the channels each role actually checks. Free consultation.
§01 What the system covers
The six layers that make prevention work.
A violence-prevention design isn't a single product. It's detection, routing, confirmation logic, lockdown automation, notification, and documentation working as one. Each layer has to be in place before the next one adds value.
§02 Detection layers
What gets detected, and where it routes.
A violence-prevention design starts with what gets detected and where. The categories below produce real prevention wins, not just incident records after the fact. Each detection layer has a routing target and a response action attached. None of them stand alone.
Domestic violence spillover: cameras at employee entrances, parking lots, and break-area windows flag known threats by plate or person of interest. HR gets a discreet alert. Tailgating and unbadged entry (two people through one badge swipe, or an unbadged person trailing an employee) is the most common entry vector for an external threat, and it routes to the front desk and the security director, not into a queue nobody reads.
§03 Response design
What happens after the alert fires.
Detection without a response plan is a paper trail nobody reads. Five actions make up the standard playbook: page the right responder on the right channel (SMS to the floor supervisor for early-stage de-escalation, Slack or Teams for the security operations team, PagerDuty for the on-call rotation), apply two-source confirmation before any lockdown automation fires, close doors and gates through the access control API, push mass notification segmented by zone and role, and hand a live camera feed to the responding agency.
Each action lives as a written rule with a named responder and an acknowledgment SLA. The customer owns the document. Quarterly reviews check that the rules still match the threat picture. Vendor model updates can shift detection sensitivity, and we catch the drift before it becomes a credibility problem.
- → SMS to floor supervisor for early de-escalation cues. Slack or Teams to security ops. PagerDuty for after-hours on-call.
- → Two-source confirmation required before any automated door close: weapon-on-camera plus acoustic gunshot, or weapon-on-camera plus a manual SOC confirmation.
- → Active-threat PA, public-entrance flip to closed, and law-enforcement feed handoff all fire from the same confirmed event.
§04 The design discipline
Two-source confirmation before any lockdown automation fires.
Single-sensor lockdowns are how a violence-prevention system loses its credibility. The first time a stage prop, a maintenance tool, or a stitched-together sequence of false positives drops the office into hard lockdown, the security committee starts looking for ways to disable the rule. Six months later the system is offline.
The fix is rule design. Active-shooter automation requires weapon-on-camera plus acoustic gunshot, or weapon-on-camera plus a manual SOC confirmation. Restraining-order alerts require a license-plate match plus a badge-deny event before any visitor screen flips closed. Each rule gets walked through the customer's risk team during the consultation, written down, and reviewed quarterly.
§05 Cost framing
What it costs, and how to frame it.
Weapon-detection overlays price per camera per month, typically $30 to $100 depending on detection breadth and whether the vendor includes a human-in-the-loop review center. A 50-camera campus deploying a single overlay lands around $1,500 to $5,000 per month. Native camera-platform weapon detection is usually bundled with the existing license at zero incremental software cost, though it limits detection to cameras already inside that ecosystem.
Mass-notification platforms typically price per recipient per year in the $2 to $8 range, with floor prices around $3,000 per year per organization. Lockdown automation tied to existing access control adds zero hardware cost when the customer already runs a major access platform. The consultation produces a side-by-side so the safety committee can choose what fits.
§06 Documentation
Documentation the legal team can actually use.
The exposure in workplace-violence prevention is not the missed alert. It's the documented design choice that buried the alert. Customers who deploy a violence-prevention system and then route everything to an unmonitored mailbox are building a paper trail against themselves.
Tec-Tel deliverables include a written routing matrix (which event lands on which channel with which acknowledgment SLA), a two-source confirmation list (which automation rules require which sensor pairs), and a quarterly review log. HR, legal, the union, and the insurer can read all three. The consultation produces them as customer-owned documents that survive vendor changes.
Questions buyers ask us
FAQ
- What's the realistic window for de-escalating before an encounter turns physical?
- Workplace-violence research from Crisis Prevention Institute and ASIS International typically frames the de-escalation window at 30 to 90 seconds once aggression cues spike. Camera analytics will not predict who is going to throw a punch. It puts a trained human inside that window with enough context to step in. The same logic applies to a customer-on-employee or employee-on-employee dispute.
- How accurate is camera-based weapon detection in a real building?
- Vendor specs typically cite high-90s percent accuracy at sub-second latency on tuned cameras. Real installs run lower at first and improve as zone masks, lighting variance, and camera angle get calibrated on site. Plan for tuning before any alert routes to a phone or radio. Pair visual detection with acoustic gunshot so a single false positive does not burn the lockdown automation. The consultation walks each camera before it goes live.
- What kinds of weapon-detection overlays does Tec-Tel install?
- We integrate weapon-detection overlays from multiple manufacturers and pair them with the customer's existing camera fleet. Some overlays run human-in-the-loop with a 24/7 review center; others run on-edge inference; and some major camera platforms ship native weapon classes inside newer cameras. The choice depends on existing camera generation, IT capacity, and how the safety committee wants the alert to land. The consultation names the fit.
- How do you handle the legal exposure around behavioral monitoring?
- Aggression and weapon detection runs on classification, not identity. The system flags "person with raised arm and prolonged shout pattern" rather than a named individual. Most operator-side legal reviews treat that as different from facial recognition. Illinois facilities get extra scrutiny under BIPA, even when face geometry is not touched. Tec-Tel documents the data flow during deployment so HR, legal, and any union representatives can review before go-live.
- Can a single alert trigger an automated lockdown?
- Only with a two-source confirmation rule. Active-shooter automation should fire on weapon-on-camera plus acoustic gunshot, or weapon-on-camera plus a manual button push from the SOC. False-positive lockdowns are operationally expensive and erode trust the first time the cafeteria gets locked over a stage prop. Each automation rule gets walked through the customer's risk team during the consultation, written down, and reviewed quarterly.
- Where do alerts go at 3 AM when there is no one in the SOC?
- Routing follows the customer's coverage model. Sites with their own 24/7 SOC route to whoever is on shift via PagerDuty or Slack. Sites without a SOC route to a third-party central station pre-briefed on the response protocol. Tec-Tel monitoring partners run documented response SLAs at the central-station tier. The consultation names which model fits each location and writes the on-call protocol so it is not invented during a real event.
- What does this cost?
- Weapon-detection overlays typically price per camera per month, in the $30 to $100 range, depending on detection breadth and whether the vendor includes a human-in-the-loop review center. A 50-camera campus deploying a single overlay lands around $1,500 to $5,000 per month. Mass-notification platforms are usually per recipient per year, $2 to $8, with a $3,000 floor. The consultation produces a side-by-side so the customer can pick the model that fits.
Book a walkthrough
Want a read on your violence-prevention design?
The free consultation walks the existing camera and access stack, the channel each alert currently lands on, and the rules that fire automation. We'll produce the two-source confirmation list and the routing matrix so HR, security, and legal can sign off on what's getting paged on day one.
- Tell us how many sites you run and what's already in place. We'll show you what a build or upgrade looks like.
- Straight answers from the team that does the work. We're platform-agnostic, so you get the system that fits your sites, not one brand's catalog.
Since 2010 · 1,000+ deployments nationwide · ISN-accredited
How can we help?
What you're looking for, plus any details. We review it and follow up, usually the same day.
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