The Danger of Shortcuts: Why Defeating Safety Controls is a Risk Never Worth Taking

Most safety controls are bypassed for understandable reasons. The alarm keeps going off for no reason. The interlock trips during start-up. The sensor is "known to be faulty." Disabling it just for this shift feels like common sense, and most of the time nothing happens. That's exactly what makes it so dangerous: every uneventful shortcut makes the next one feel safer.

The rule is: get proper authorisation before you override or disable a safety control, and treat a faulty control as a problem to fix, not a nuisance to work around.

What that looks like on the job

• Know which equipment is safety-critical on your job: trips, interlocks, alarms, relief valves, guards, gas detectors and level switches.
• Use the override process. If a control genuinely has to be bypassed, it should be risk-assessed, authorised, recorded, protected by other measures and reinstated as soon as possible.
• Report nuisance alarms and faulty controls. A control people don't trust will eventually be ignored or disabled. Getting it fixed protects everyone.
• Speak up if you notice a control has been disabled, a guard is missing or a temporary bypass has become permanent.

Real-World Impact

In December 2005, a fuel storage tank at the Buncefield depot in Hertfordshire, UK, was being filled overnight with petrol. The tank's level gauge stuck, as it had been doing on and off for months, and the independent high-level switch that should have shut off the flow automatically was inoperable because a padlock needed to keep it working had never been fitted. Petrol overflowed, formed a huge vapour cloud and exploded. It was one of the largest explosions in peacetime Europe; 43 people were injured and much of the depot was destroyed. Two safety controls had been quietly out of action, and nobody had treated that as urgent.

Source: UK Health and Safety Executive and Environment Agency, Buncefield: Why did it happen? (2011)

It isn't an isolated problem. The marine contracting association IMCA classifies the incidents its members report by Life-Saving Rule, and bypassing safety controls has repeatedly come out as the most often broken rule. In the year covered by its April 2021 review, it accounted for 48% of classified incidents (IMCA); the exact share varies from year to year, but the pattern is consistent.

Reflective Questions

• Which alarm or interlock on our site do people complain about most, and has anyone fixed it?
• Are there any "temporary" bypasses that have been in place for weeks?
• Would you feel comfortable stopping a job if you found a control disabled by someone more senior?