Covid-19: Theft, malevolent acts and arson: measures to be taken to prevent these risks when sites are unoccupied

The current context (COVID-19) reminds us that industrial, commercial or tertiary sites may be subject to more or less lengthy closures. Malicious acts often occur during periods of vacancy. As a reminder, criminal acts account for 10% of claims, and fires are often deliberately started to erase traces. During this period of inactivity, we recommend that you maintain your sites at maximum security against any malicious act.




– Check / Reinforce your fences (replace wire mesh by metal cladding). Ideally, fences should be at least 2 metres high.


– Block site accesses (gates) to prevent illegal occupation – place concrete blocks in front of accesses to prevent intrusion, including in front of power and/or fuel supply premises.


– Lock rooftop accesses from safety ladders (close with grids + padlock).


– Enhance site access control procedures (individual checks, registration and escort visitors).


– Set up or enhance surveillance systems, especially during periods of inactivity: intruder alarm (motion detection, perimeter detection, etc.), video surveillance, systems with motion detection.


– Check if video surveillance images can be accessed from the outside so that alarms can be remotely cancelled.


– Set up or enhance site security (increase the frequency of rounds; switch to dog-assisted security).


– Check the lone worker protection system for your security guard or on-call personnel, as well as the response chain (call procedures, duplicate keys, etc.).


– Remove all residual equipment and products – storage near buildings, empty bins and compactors, dispose of residual waste, etc.


– Protect sensitive equipment: move vulnerable equipment away from isolated areas, eliminate or secure open-air storage of high-risk products (flammable liquids / gases / fuels).


– Spot the warning signs (several similar attacks in the vicinity).


– Request patrol system surveillance by national law enforcement.



Verlingue’s Prevention department has all the necessary documents to prevent incidents. If you have any questions: direction.prevention@verlingue.fr