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World desk3 min

Does One Security Camera Deter Burglars? What the Evidence Shows

Some surveyed burglars said they considered outdoor cameras when choosing targets. That finding does not prove that one home camera reduces break-ins or by how much.
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A visible outdoor security camera may influence some burglars’ target choices, but the available evidence does not show that installing one camera cuts home break-ins by a measurable amount. The most directly relevant study asked incarcerated burglars what they considered; it did not track burglaries before and after camera installations or isolate one camera’s effect.

What the burglary survey actually found

A 2012 study, summarized by the University of North Carolina at Charlotte in 2013, surveyed 422 incarcerated men and women selected from state prison systems in North Carolina, Kentucky, and Ohio. Researchers asked about motives, target selection, deterrence, techniques, and gender differences. Respondents described considering factors such as people nearby, escape routes, and signs of security. Those indicators included outdoor cameras and other surveillance equipment, as well as alarm signs, alarms, and dogs inside the home. UNC Charlotte’s study summary reports these stated considerations; it does not establish that a camera installation caused fewer residential burglaries.

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The distinction matters: a survey about what people say they consider when choosing a target is not a controlled comparison of homes with and without cameras. It cannot tell homeowners how much risk one camera changes, or whether a camera alone changes the outcome.

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Why the familiar alarm statistics are not camera statistics

The UNC Charlotte summary says 83% of respondents would try to determine whether an alarm was present before attempting a burglary, while 60% said they would seek another target if an alarm was present. Both figures refer to alarms, not cameras. They should not be used as estimates of how many burglars avoid a home because it has a camera.

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The study was funded by the Alarm Industry Research and Education Foundation under the auspices of the Electronic Security Association. Its findings remain useful as a description of the surveyed respondents’ reported decision-making, but they do not provide a camera-specific effect size.

What public-space CCTV research can—and cannot—add

A 2008 Campbell Collaboration systematic review examined 44 evaluations of public-space CCTV in the United Kingdom, United States, Canada, Norway, and Sweden; most evaluations came from the United Kingdom. It found that outcomes varied by setting. The strongest reported effect was in car parks, where vehicle crime decreased by half in the reviewed CCTV schemes, according to the Campbell review summary.

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That result is not evidence that a single residential camera halves break-ins. The car-park programs combined CCTV with measures such as guards, lighting, and fencing, so the review could not separate the camera’s contribution from the rest of the package. The review’s search ended in April 2007, and its subject was public-space crime rather than home burglary.

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How to think about a single camera at home

A camera can make activity around a particular view more visible and may be one security indicator a potential intruder notices. But one device only covers the area its lens can see, and the usefulness of that view depends on the property layout. A camera pointed at a driveway, for example, does not automatically cover a side entrance or rear window. This is a coverage consideration, not a proven crime-reduction result.

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If you are choosing an outdoor home security camera, compare the practical features that determine whether it suits your property:

  • Weather rating: Check that the camera is rated for the conditions where it will be installed.
  • Field of view and placement: Match the viewing angle to the entrance or outdoor area you want to monitor, and consider whether other approaches remain outside the frame.
  • Power: Wired, battery-powered, and solar options have different installation and upkeep requirements.
  • Recording and storage: Check whether footage is stored locally or in the cloud and whether cloud recording requires a subscription.
  • Alerts and audio: Consider whether motion alerts are useful and manageable, and whether two-way audio is a feature you need.

These are product-selection criteria, not features shown by the cited studies to prevent burglaries. The evidence does not identify a best camera placement, minimum camera count, or camera feature that produces a particular reduction in break-ins.

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So, does one camera cut the risk of a break-in?

The defensible answer is that a visible camera may be considered by some burglars when they assess a target, but research cited here does not establish that one camera reduces residential burglary incidence or quantify how much it might change the risk. Treat a camera as a way to monitor the area it covers—not as a guaranteed deterrent or a substitute for a broader home-security plan.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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