CCTV will not stop a theft, it will only tell you who did it

We get called to sites with excellent camera coverage and a continuing loss problem. Sixteen channels, a decent DVR, everything recording. And every month the stock-take is short.

The owner's reasonable question is: what is the point of all these cameras?

The answer is that the cameras are working exactly as designed. They record. They were never able to prevent anything, and expecting prevention from them is the mistake — an understandable one, because that is how they are sold.

What a camera actually changes

A camera changes one variable: the probability that whoever does it is identified afterwards.

That matters. It is genuinely useful for insurance, for disciplinary action, for a police complaint, and for the specific case of an employee who now knows he would be recognisable. It is a real deterrent for someone who is known to you and thinking about it.

What it does not change is what is physically possible at 2 a.m. It does not shut a gate, challenge a stranger, or notice that the same auto has come past three times. No barrier, no interruption, no decision.

So the honest description is: a camera is a forensic instrument with a modest deterrent side effect. If you are buying it for prevention, you have bought the wrong tool for that job. If you are buying it for evidence, it is very good — subject to the retention problem below, which is the one that catches nearly everybody.

The retention arithmetic that undoes most systems

Here is the pattern we see constantly.

Losses are rarely noticed the day they happen. Scrap, packaging, consumables, cement, small tools — these go missing gradually and surface at a stock-take or an audit. The gap between the event and the discovery is typically weeks.

Meanwhile a typical DVR holds one to four weeks depending on channels, resolution and frame rate.

For the loss types that account for most rupees, the footage is gone before anyone thinks to look. You paid for evidence that expired.

This is the cheapest fix available on most sites. Not more cameras — more days. Work out your realistic discovery time and buy storage to exceed it. Often that means lowering frame rate on non-critical channels and raising retention to sixty or ninety days, which costs a hard disk rather than a project.

Four questions to ask about your own system

1. How many days does it actually hold, right now? Not what the installer said in 2023. Check the oldest available footage today, with the current channel count. Systems degrade as cameras are added.

2. Can you read a number plate on the gate channel? Go and look. A camera that shows "a truck" is not evidence of anything. Plate capture needs the right placement and resolution, and it usually needs a dedicated camera at the right angle rather than a wide view that happens to include the gate.

3. Is anything covering the exit path for material? Most systems watch entrances, because that is the intuitive thing to point a camera at. Theft leaves. Weighbridge, scrap yard, loading dock, back gate, boundary wall where the wall is low.

4. Who has the login, and is there an off-device copy? A DVR in an unlocked room, with a password everybody knows, is not a record. If the incident involves someone with access, the footage goes first. Even a weekly export of the critical channel to a separate drive changes this.

Why fixed cameras stop deterring

Deterrence works on attention, and attention habituates.

A dome camera that has been in the same place for two years is furniture. Everyone who works there has stopped seeing it, including the people you would want deterred. This is not a flaw in the camera — it is how human beings work.

What continues to deter is anything unpredictable. A guard walking a patrol at irregular times. A supervisor who turns up at 3 a.m. once a fortnight. A register that somebody visibly reads. A torch sweeping a yard from a different direction than last night.

The moment a control becomes schedulable, it becomes avoidable. That is the whole argument for people over hardware in prevention: a person is unpredictable and can make a decision, and a fixed lens is neither.

The three layers, and what each is for

Think of these as doing different jobs rather than competing.

Barriers and access control decide what is physically possible. Boundary wall, gate, lock, key control, boom barrier, pass system. Cheapest per unit of prevention and most neglected. Half the sites we survey have a good wall with a gap behind the store, or a gate discipline that dissolves whenever a contractor's truck arrives.

People decide what happens when something unexpected occurs. Challenge a stranger, refuse a load without a pass, notice the pattern, escalate, and be unpredictable while doing it. This is the only layer that intervenes.

Cameras and records establish what happened. Forensic, plus the modest deterrent effect on people who know they are identifiable.

The failure mode is buying the third layer to solve a first- and second-layer problem, because the third layer is the one with a brochure.

A sensible spending order

If you have a live loss problem, in this order:

1. Fix the physical gaps. Walk the boundary at night with a torch. You will find the gap. It is usually behind something.
2. Fix gate discipline and gate passes. Nothing leaves without an authorising signature. This alone stops most "legitimate-looking" removal.
3. Extend camera retention past your realistic discovery time, and add plate capture at the gate and a camera on the material exit.
4. Put a person where the pattern is, on irregular rounds, with a register somebody reads.
5. Then, and only then, add more cameras.

Most sites do this list in reverse and are surprised the losses continue.

When cameras are the right first purchase

To be fair to the technology. Cameras should be near the front of the queue when:

• you need evidence for insurance or a claim as a matter of policy;
• you have a specific suspicion about a specific person and need to establish it;
• the area is genuinely unstaffable — a remote yard, a transmission site, a long perimeter where a guard cannot see;
• you need audit trail rather than prevention, for a compliance requirement;
• the deterrent target is employees, who are identifiable and know it. This is where cameras genuinely prevent.

That last one is the strongest case for CCTV as prevention, and it is worth being honest that it is also the most uncomfortable one.

We will tell you if you do not need more guards

Central India Security & Services has been surveying and guarding sites across Madhya Pradesh since 1994 — cement plants, warehouses, hospitals, campuses and government offices. PSARA Licence No. PSA/L/19/MP/2025/AUG/3/1356, MHA approved, ISO 45001:2018 and ISO 9001:2015 certified.

If you have a continuing loss problem, ask us to walk the site. Sometimes the answer is more guards. Fairly often it is a boundary repair, a gate-pass rule and ninety days of retention — and we would rather tell you that than sell you four postings you do not need.

WhatsApp us or call +91 99267 73460.