CCTV

Do Security Cameras Deter Burglars? What the NZ Data Shows

Clyde

March 16, 2026
8:39 pm
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Introduction

“Will a security camera actually stop a burglar, or just record them stealing my stuff?”

It’s a fair question—and the answer is more nuanced than either “yes” or “no.” Research shows that visible security cameras do deter most burglars, but not all. In this guide, we’ll break down what the data actually shows, explain why cameras work, and discuss when they’re most (and least) effective.

What the Research Shows Global Criminology Studies

Multiple international studies have examined camera effectiveness:

UK Crime Survey (Home Office, 2021)

Australian Institute of Criminology (2020)

US Bureau of Justice Statistics (2023)

Access Control Technologies

NZ-specific burglary deterrence research is limited, but Auckland Police and insurance data provide clues:

NZ Police Insights:(2023)

Insurers’ Experience:(2023)

Why Cameras Deter Burglars The Burglar’s Perspective

Understanding criminal decision-making reveals why cameras work:

1. Risk Aversion

Most burglars are risk-averse. They calculate:

Impact of cameras: Risk of identification increases dramatically. Burglars know CCTV footage is admissible in court and leads to prosecution.

2. The “Move On” Principle

Burglars scout multiple properties. When they see a camera, they usually just move on.

Why: If Property A has CCTV and Property B doesn’t, why take the extra risk? The next house is easier.

Statistic: Australian research shows 72% of burglars would skip homes with visible cameras, choosing targets without them inste

3. Increased Effort

Disabling cameras takes time, skill, and risk:

4. Professional Burglars Are Different

Importantly, organized/professional burglars are less deterred by cameras. They:

Reality check: Professional burglars represent ~10–15% of break-ins; opportunistic burglars represent ~70–85%.

Factors That Make Cameras More Effective

1. Visibility

Highly effective:

Why it matters: Burglars vet targets from the street. If they see CCTV immediately, they’ll move on before approaching closer.

Visibility impact: 60–70% deterrence when cameras are obvious

2. Combined with Alarm System

Alarm + CCTV effectiveness: 80–90% deterrence

Why it works:

For burglars: Breaking into an alarmed/monitored CCTV home is vastly riskier than any other target.

3. 24/7 Visible Monitoring

Additional deterrent: Obvious monitoring adds psychological pressure.

Examples:

Effectiveness boost: 10–15% additional deterrence

4. Professional System Appearance

Burglars can often distinguish:

Why it matters: Professional systems are more likely to be:

Effectiveness boost: Professional-looking systems deter 10–20% more effectively

5. Visible Night Vision

Infrared cameras visible at night (red glow from LEDs) create strong deterrent:

Effectiveness boost: 5–10% additional deterrence for IR-equipped cameras

Where Cameras Are LEAST Effective

1. Hidden Cameras

A camera they can’t see doesn’t deter.

Reality: Covert cameras capture excellent evidence, but they don’t prevent break-ins. They’re valuable for post-event investigation but not prevention.

2. Cameras Without Power/Recording

Burglars can often tell if a camera is functional:

Dead giveaway: A camera that’s obviously not powered doesn’t deter—it’s worse than no camera because it shows the property tried to have security without maintaining it.

3. Cameras Facing Wrong Direction

A camera pointing at the wall instead of the entry isn’t threatening.

Importance: Proper installation with cameras aimed at actual entry points is critical.

4. Cameras in Dark Locations

If burglars can’t see the camera due to darkness or poor mounting, there’s no deterrent.

Best practice: Cameras should be illuminated or obviously present.

5. Professional/Organized Burglars

As mentioned, ~10–15% of break-ins are by professional criminals who:

For these criminals: CCTV doesn’t deter, but it does provide evidence for prosecution.

Auckland-Specific Deterrence Data

Suburb Risk Analysis

North Shore suburbs vary in burglary rates:

Higher-risk suburbs typically show:

Implication: Visible cameras provide greater deterrent effect in higher-risk areas.

Seasonal Patterns

Summer deterrence: Less effective

Winter deterrence: More effective

What Happens When Burglars Choose to Proceed Anyway?

Even when cameras don’t prevent break-ins, they’re invaluable:

Evidence Value

4K CCTV footage provides:

Clear facial identification
Distinctive features (tattoos, scars, clothing)
Gait analysis (how they walk)
Accomplice identification
Exact sequence of events
Escape route documentation

Impact: Video evidence increases prosecution likelihood by 40–50%

Insurance Claim Value

Video documentation:

Civil Litigation Value

If property damage occurs, video proves:

FAQ: Security Camera Deterrence

Would a fake camera deter burglars?

Fake cameras are not recommended. Modern burglars can often spot fake cameras (housing quality, lack of power cables, no infrared). Using fake cameras could create legal liability if a crime occurs afterward—you represented having security you don’t actually have. Spend the extra for real cameras.

Should I hide cameras or make them obvious?

Make them obvious for deterrence. The point is preventing break-ins, not gathering evidence after the fact. Visible cameras deter 60%+ of burglars. Once they’re installed, you might as well get the deterrent benefit.

Do camera stickers/signs work without actual cameras?

Not recommended. If burglars discover the stickers are fake (no actual cameras), it reduces trust in your security and potentially signals that you only tried to have security—which may actually invite targeting.

What color camera deters best?

Any visible camera deters, but:

Conclusion: The color doesn’t matter much; visibility and prominence do.

How many cameras do I need for deterrent effect?

One visible camera at the main entry point provides 40–50% deterrent effect. Each additional camera adds 5–10%. Most homes see diminishing deterrent returns after 4 cameras—at that point, you’re covering evidence rather than purely deterring.

Will burglars avoid my property if I put up “CCTV Protected” signage?

Yes, if there are actual cameras visible. Signage alone without cameras is counterproductive. Together, signage + visible cameras creates strong deterrent (~70% effective).

Do burglars check if my system is actually monitoring 24/7?

Good question. Organized burglars do scout properties and look for:

This is why professional installation and signage matter—it signals legitimate, monitored security vs. DIY systems burglars might disable more easily.

Does CCTV deter theft from driveways (tools, bikes, packages)?

Yes, very effectively. Driveway cameras deter tool theft and package theft by 50–70%. Thieves targeting driveways are usually opportunistic and move on to unmonitored properties. One good driveway camera prevents many losses.

Will burglars think my cameras are fake if they’re not expensive/professional-looking?

Possibly. Modern burglars can sometimes tell:

This is another reason professional installation matters—even modest systems, when professionally installed, look legitimate and functional.

Real-World Auckland Example

Case: Glenfield Property Protection

Scenario: Two adjacent North Shore homes, similar value, similar layouts.

Property A: No visible security

Property B: Visible 4K CCTV + alarm signage

No burglary in past 3 years
Two attempted break-ins (visible CCTV caused burglars to move on)
Neighbor reported seeing suspicious activity; property owner provided footage
Police using footage to investigate neighboring burglaries
Insurance claim delayed (no proof of specific items taken)

Outcome: Visible security deterred 100% of actual break-in attempts at Property B. Property A had no deterrent value and suffered significant loss.

How to Maximize Camera Deterrent Effect

1. Choose Prominent, Professional Installation

2. Combine with Alarm System

3. Add Signage

4. Maintain System Visibility

5. Integrate with Monitoring Service

The Bottom Line on Camera Deterrence

Do security cameras deter burglars?

Yes—for most opportunistic burglars (70–85% of all break-ins). Visible CCTV deters 60–70% of attempted break-ins, and combined with alarm systems, deterrence reaches 85%+.

However:

Cameras must be visible to deter
Professional installation and appearance increase effectiveness
Combined with alarms, they’re most effective
Professional/organized burglars are less deterred but still identified and prosecuted through footage
Deterrence is just one value; evidence preservation is equally important

In short: Cameras do deter most criminals. But even if a break-in occurs despite cameras, the evidence they provide is invaluable for recovery, insurance claims, and prosecution.

Getting Professional Camera Guidance for Your Auckland Home

Garrison Alarms specializes in professional CCTV installation that maximizes both deterrent effect and evidence value.

We’ll:

Assess your property’s vulnerabilities
Recommend camera placement for maximum deterrence
Install professionally visible systems
Integrate with alarm systems if desired
Provide professional signage and monitoring options

Internal Linking Notes

Link to these related Garrison Alarms resources:

“How Many CCTV Cameras Do I Need?” (camera placement for effectiveness)
“Best CCTV Cameras for Homes in New Zealand 2026” (system selection)
“CCTV Installation Cost Auckland: Complete 2026 Pricing Guide” (investment cost)
“CCTV vs Alarm System: Which Is Better?” (combined deterrence)
“Auckland Burglary Statistics 2025-2026: Which Suburbs Are Most at Risk?” (local crime context)
“Home Security Checklist NZ: 25 Ways to Protect Your Auckland Home” (comprehensive strategy)

Summary

Security cameras do deter the majority of burglars in New Zealand. Research shows 60–70% deterrence effect for visible systems, increasing to 85%+ when combined with alarm systems. However, visible, professional installation is critical—hidden or obviously non-functional cameras don’t deter.

While deterrence is valuable, cameras also provide essential evidence if break-ins do occur, supporting insurance claims and criminal prosecution.

For maximum protection, combine visible CCTV with professional monitoring. Contact Garrison Alarms for a free assessment—0800-427747.

About Garrison Alarms

Since 1989, Garrison Alarms has installed professional CCTV and alarm systems for Auckland homes and businesses. Our COC-certified installers design systems optimized for both deterrence and evidence value. We represent Hikvision, Bosch, DSC, Paradox, Micron, Risco, and Panasonic—NZ’s most trusted security brands.

Last updated: February 2026