This article is part of our topic on businesses and logistics sites.
A “closed” warehouse is not always empty. A team may still be finishing, cleaners may be working or a carrier may arrive late. Securing after-hours periods means understanding these uses, confirming access conditions and organising alert response. Sensors and patrols rely on that information.
The right system distinguishes a closing discrepancy, an authorised presence, a detection needing verification and a technical fault. It tells the responsible person what remains available without turning security surveillance into monitoring employees’ work.
Define when each area is actually closed
List the relevant loading bays, pedestrian entrances, offices, stock areas and technical spaces. For each, specify the last planned activity, exceptions and who restores the required condition. One company-wide schedule may not describe every part of the building.
Valais cantonal police recommendations for businesses encourage reviewing entrances and property to protect. Add the operating schedule for a warehouse: a door left in an agreed state for a delivery must be interpreted with that context.
| Area | Information before closing | Person to identify |
|---|---|---|
| Loading bays | Deliveries complete or exceptions announced. | Operations / loading-bay manager. |
| Storage | Remaining authorised access and movements. | Stock manager. |
| Areas occupied late | Expected people and periods, managed proportionately. | Relevant team manager. |
| Security equipment | Known faults and temporary measures. | Technical manager or supplier. |
| Outdoor site | Remaining authorised traffic and closing conditions. | Person responsible for closing. |
Prepare a handover that records discrepancies
Handover should communicate the actual site condition, including exceptions: unavailable equipment, a postponed delivery or a temporarily unusable area. “Everything is closed” is insufficient when several companies or teams are involved.
Define who can declare closing, who receives outstanding issues and who can authorise an exception. The service verifying alerts needs access to this information. Avoid scattered messages on personal phones that are hard to retrieve or update.
Download the after-hours handover sheet (CSV)The sheet is a coordination tool. It does not replace specific occupational safety, fire or goods-management procedures. Those arrangements retain their own responsible people and criteria.
Connect sensors and patrols to checkpoints
A contact can report an access state; a camera provides visual context; a patrol can observe a situation from another point. Define the anomaly, expected information and next action for each task. “The robot completed its route” is not the same as “every point was checked usefully”.
Our article on robotic business patrols proposes tracking tasks, observations and manual recovery. Pallets, vehicles, doors and passageways can change in a warehouse. Route suitability and movement safety need reassessment.
Thermal detection or a security camera does not automatically replace fire-safety equipment or regulated technical monitoring. Each intended purpose needs its own requirements and validation. Comparing robots, guards and remote monitoring helps avoid overly broad promises.
Prepare exceptions and alert handling
The alert-handling service should know the area involved and what activity remains authorised. Provide a way to confirm and close an exception. Temporary authorisation should not leave an area’s surveillance disabled indefinitely.
- Receive the event with its time and area.
- Consult current closing information and exceptions.
- Review available evidence within the task and access rights.
- Follow instructions and contact the agreed people without assuming an uncontracted response time.
- Record the outcome and restore the agreed settings.
Technical faults require a separate procedure. An offline camera does not prove intrusion, but may reduce verification capability. The continuity-matrix principle still applies: examine detection, records, transmission and receipt separately.
Protect goods without monitoring employee behaviour
The Swiss framework distinguishes security purposes from behaviour monitoring. SECO addresses proportionality, employee participation and system documentation. Working after closing does not remove people’s protection.
Define prior information, observed areas, viewing rights and necessary retention. Do not reuse security footage to automatically track breaks or productivity. Software capabilities alone do not justify using them.
The video surveillance and data protection guide complements this assessment. Also assign responsibility for accounts, remote access and maintenance; NCSC recommendations provide a basis for the technical discussion.
Test closing through representative scenarios
Start with a limited scope and announced tests: normal closing, an authorised late delivery, an unavailable checkpoint and lost connectivity. Check what the service receives, the available context and whether instructions can be followed. Document gaps before expanding.
In a fictional example, cleaners finish in one area while the rest of the warehouse is closed. A presence alert is triggered. If handover records the activity and expected end time, the operator has the necessary context. Without it, unnecessary verification or excessive disabling may follow.
Connect results to the industrial and logistics security plan and the system’s total cost. The selected arrangements should work every evening, be maintained and be corrected when uses change.
Frequently asked questions
Can authorised people still be present in a closed warehouse?
Yes. Cleaning, maintenance, late-working teams or deliveries may continue in certain areas. Alert handlers need to know these exceptions.
Does a completed patrol prove everything is normal?
No. Also verify that expected checkpoints were observed with usable information and that any anomalies were handled.
Should all monitoring be disabled for a late delivery?
Limit and organise the exception according to the system. Broad, lasting disabling should not become the default answer to a coordination problem.
Can a security camera monitor night work?
Each use needs its purpose and legal framework assessed. Security does not justify monitoring employee behaviour, and data cannot be freely reused for other purposes.
Sources and method
The handover sheet, scenarios and checking method are original editorial tools. The cleaning example is fictional; no particular installation or performance is presented as validated. Sources consulted on 23 October 2026.
- Valais cantonal police — Business burglary preventionProtecting entrances, property and business continuity.
- SECO — Commentary on Article 26, Employment Act Ordinance 3Conditions and documentation for workplace monitoring systems.
- NCSC — Internet of Things securityAccounts, updates and access to connected devices.