The short, honest answer: yes — but not in the way most security camera companies want you to believe. Cameras deter opportunistic crime. They do almost nothing to stop someone who’s already decided to break in regardless of consequences.
That distinction matters when you’re deciding how much to spend and where to put cameras. Let me walk you through what the research actually says and what I’ve seen in 12 years of residential security work.
What the Research Says
The most cited study on this is from Rutgers University’s School of Criminal Justice (2009), which examined burglary rates in Newark, NJ after installing security cameras across the city. The result: burglary rates dropped 50% in areas with cameras and also dropped — though less — in the surrounding areas where no cameras were installed. The cameras created what researchers called a “halo effect.”
A 2012 Urban Institute study of CCTV cameras in Baltimore and Chicago found similar results: crime dropped in camera-covered areas. But it also found that crime displacement was real — some criminal activity just moved to non-monitored areas nearby.
More directly relevant for homeowners: a 2013 survey by the University of North Carolina Department of Criminal Justice & Criminology asked 422 incarcerated burglars what factors influenced their target selection. About 60% said the presence of a security camera was a deterrent. Only about 40% said an alarm system was. Cameras, visibly placed, rank high on the list of things that make burglars choose a different house.
The Type of Criminal That Matters Most to Homeowners
Here’s what that UNC research also found: most residential burglars are opportunistic. They’re looking for the easiest target on the block, not a specific house. They don’t have elaborate plans or professional skills. They’ll walk a street, look for signs of an easy entry, and pick the lowest-risk option.
For that type of criminal — which represents the large majority of residential break-ins — a visible camera is a genuine deterrent. It raises the perceived risk. They’ll skip your house for the one without the camera.
The type cameras don’t deter: targeted burglars who specifically want what’s in your house (rare for most homeowners), or professionals who know how to work around them (also rare in residential settings). If someone has decided your home specifically is the target, a camera won’t stop them — but it will document them, which helps with investigation and insurance claims.
Placement Makes the Difference
A camera that no one can see isn’t deterring anyone. This is the biggest mistake I see homeowners make: they mount cameras under eaves, pointing down from 12 feet, completely invisible from the street.
For deterrence, cameras need to be visible. That means:
- Mounted at eye level or slightly above, not hidden under eaves
- At the front door and at both sides of the home where someone might approach
- With a status light that indicates the camera is active (most cameras have these — don’t disable them)
- Backed by a sign indicating video surveillance is in use
The sign matters more than people think. Multiple burglary deterrence studies have found that visible warning signs are effective independently of whether cameras are actually present. The sign creates uncertainty, and uncertain criminals usually move on.
Indoor vs. Outdoor Cameras: Different Purposes
Outdoor cameras deter. Indoor cameras document.
If someone has already entered your home, an interior camera isn’t going to change the outcome of that break-in. Its value is evidentiary: it captures what was taken, how the entry happened, and what the person looked like. That footage is useful for insurance claims and police investigations.
Don’t spend your budget on interior cameras until your exterior coverage is solid. The deterrence happens outside.
Do Fake Cameras Work?
Depends on the criminal. For the casual opportunist, a convincing fake camera with a blinking LED and a real-looking mount may deter them just as effectively as a real one — they’re not going to walk up and inspect it. For anyone with real criminal experience, fake cameras are usually obvious: bad housing materials, no wiring, fixed mount with no adjustment ability, brand names that don’t exist.
My honest take: real cameras have come down far enough in price that fake cameras aren’t worth it for most homeowners. A Wyze Cam Outdoor v2 is $50. An Arlo Essential outdoor camera is $100. Those are real 1080p cameras with night vision and two-way audio. The fake camera gamble only makes sense if you’re genuinely cash-strapped.
What Cameras Can’t Do
This is the part the marketing materials skip. Cameras don’t stop a break-in once someone’s committed to it. They don’t replace locks, lighting, or an alarm system. And they require you to actually check them — footage sitting on an SD card that no one reviews isn’t providing security, it’s providing documentation after the fact.
A well-placed camera works best as part of a layered system:
- Solid locks and reinforced door frames (the first physical barrier)
- Good exterior lighting (reduces opportunity for approach under cover)
- Visible cameras (raises perceived risk before approach)
- An alarm system with sensors (triggers response after entry attempt)
Cameras are one layer. They’re not the whole strategy.
Best Placement Strategy for a Typical Home
If you have a budget for two or three outdoor cameras, here’s how I’d prioritize placement:
- Camera 1: Front door, eye level, angled to capture faces and the front approach
- Camera 2: Back door or gate — this is the second most common entry point and the one people usually skip
- Camera 3: Garage area or side yard, covering the approach that’s hardest to see from the street
If you’re choosing between a video doorbell and a separate front camera, a dedicated outdoor security camera gives you better field of view and typically better night vision. The video doorbell is more convenient for day-to-day package and visitor monitoring but has a narrower lens angle.
For outdoor cameras specifically, there are good options at every price point — whether you want local storage to avoid subscription fees or cloud backup for off-site redundancy. The key is picking something with actual deterrence value: visible, lit status indicator, and weatherproofing that makes it look permanent rather than temporary.
The Verdict
Security cameras deter residential crime — particularly opportunistic burglary, which is the most common type. The research is consistent on this. Visible cameras on the exterior, combined with security signage, raise perceived risk enough that most casual burglars choose a different target.
They’re not magic. They don’t stop someone who’s decided your home is their target regardless of consequences. They work best as one layer of a broader security setup — not as the entire strategy.
Place them visibly. Cover your entry points. Don’t bother with fake cameras when real ones cost under $100. And remember that the research on deterrence is about opportunistic crime — which happens to be exactly what most homeowners are trying to prevent.
Do Indoor Cameras Deter Crime?
Indoor cameras work differently from exterior cameras in terms of deterrence. A burglar casing a house from the sidewalk cannot see an indoor camera. It provides no deterrence at the moment of decision — it only records what happens after entry.
Where indoor cameras matter: they provide documentary evidence for insurance claims, and the presence of visible indoor cameras (through a window, or near the front door) can deter specific types of theft — package theft, opportunistic entries. But they are not a first line of deterrence the way exterior cameras are.
For most homeowners, the right allocation is exterior cameras at primary entry points first — front door, back door, garage — and indoor cameras as a secondary layer if the budget allows.
Frequently Asked Questions
Do visible security cameras reduce burglary risk?
Yes, based on consistent research findings. Visible exterior cameras reduce the perceived attractiveness of a property as a target for opportunistic burglars — which represents the large majority of residential break-ins. Cameras are less effective against targeted or professional burglars, who are statistically rare in residential settings.
Are fake security cameras effective deterrents?
Marginally. Fake cameras add some perceived risk but experienced burglars know what to look for: no indicator light, single fixed lens, cheap plastic housing. If a real camera costs under $50, there is no good argument for using a fake one. The deterrence gap between a $40 real camera and a $10 fake is too significant to justify the savings.
How many cameras does a home need?
Cover the primary entry points: front door, back door, and garage if applicable. Three well-placed exterior cameras cover the majority of entry risk for most residential properties. Add coverage for blind spots on the sides of the property and any areas where someone could approach without being visible from the street.
Do security cameras help with insurance claims?
Significantly. Footage documenting a break-in — what was taken, how entry was made, time and date — accelerates claims and reduces disputes. Some insurers ask for video evidence when the claimed loss is above a certain threshold. A camera that records to cloud storage is more useful for this purpose than one with only local storage, since local storage devices are sometimes stolen along with other valuables during a break-in.