A Thoughtful, Analytical Approach to NGO Security

The Common Sense Myth

I don’t know how many times I’ve heard some variation of this statement; “Security is just common sense.” I’ve seen NGOs use this belief to justify not dedicating resources to security. “We don’t need a security officer… we have experienced staff with good common sense.” Worse, I’ve seen people use it to justify breaking security procedures. “Its all just stupid rules… my common sense will keep me out of trouble.”

There is only one problem. Common sense is NOT good for security! Common sense is based on a whole series of faulty assumptions, biases and quirks.

Assumption of Common Knowledge

The first assumption is sometimes referred to as “Assumption of Common Knowledge”. In other words you know something so well that you think everyone must know it too. It just seems so obvious to you that it must be common sense.

The faulty logic of Assumption of Common Knowledge is revealed when common sense is cited in instructions. Reliance upon the term common sense when giving instructions pre-supposes that the instructed already has a grasp on the subject, and therefore needs no specific detail.

Some examples from security advice I have read:

“When working in high-risk areas use your common sense.”
“When travelling in a foreign country use common sense to avoid offending people.”
“If you are involved in a motor vehicle accident and an unruly crowd begins to form use common sense.”
“Use common sense during first aid emergencies.”

Do these statements make sense to you? Consider that in most security manuals, immediately after the “use common sense” statement, you’ll find a checklist of things that you should and shouldn’t do when in such a situation. If it is truly common sense why is the checklist needed?

Not convinced? Try these:

“When deciding whether or not to bilaterally transect the artery use common sense.”
“When connecting new wiring to the building mains use common sense.”
“If you are alone when you go into labour use your common sense.”
“When conducting sensitive hostage negotiations use common sense.”

Do you feel a sudden need for more detailed instructions? If saying, "use common sense" worked security procedures wouldn’t be nearly so wordy.

Cultural Norms

Every culture and subculture has norms which members are immersed in and unable to distinguish from common sense. Anyone with experience working in other cultures has had the experience of running up against cultural practices that seemingly lack any semblance of common sense. Eventually of course you realise that members of other cultures may also view your own cultural norms as similarly nonsensical. The physical reality of the world remains the same wherever you travel but the ‘common sense’ rules people use to navigate it change.


“Saudi flag on football = good PR” vs “Saudi flag on football = insult to Allah”
"When negotiating “be open and honest” vs “allow participants to save face”
“Using weapons to protect NGO personnel and property decreases security by sanctioning violence” vs “Weapons are necessary for protection. Its just common sense!”

By the way, the last statement was expressed to me by national staff members of a large INGO. While they were willing to accept that the ‘soft’ international program staff might not see the necessity for self-defence weapons they really could not believe that a security officer couldn’t see the common sense in it.


In effect it sounds like it makes sense. Clichés often fall into this category. “Opposites attract” - common sense right? “Birds of a feather flock together” – common sense too!

Clever arguments, well stated, can be persuasive even if built on a foundation of bias lacking evidence. Take for example the politician who exclaims, “What we need is a common sense solution to the conflict” leaving the majority nodding their heads sagely while overlooking the fact that the opposition never actually supported a solution devoid of common sense.

“Mosquitoes can spread AIDS.” By now most of us should know that that just isn’t true. Surprisingly many people still believe it. To them it just sounds plausible. “AIDS is spread by body fluid to body fluid contact… mosquitoes transfer body fluid… mosquitoes spread AIDS.” It’s just common sense, right?

Cognitive Biases

There are a large number of cognitive biases that cloud our thinking and skew our common sense. Covering them all is beyond the scope of this article but consider these:

Optimism bias the tendency to be overly optimistic about the outcome of intended actions
Recency effect — the tendency to consider recent events as having more import than earlier events
Zero-risk bias — the preference for reducing a small risk to zero over a larger reduction in a greater risk

Pre-Pubertal Learning

Ideas learned before puberty are difficult to unseat and are generally believed by the holder to be common sense. Thought processes change during puberty allowing most of us to more readily consider inconsistencies, question assumptions, and assess the grey areas of life. However, what we have learned prior to puberty generally remains unchallenged.

Most children accept "morality of authority" in which truth is what a credible authority figure has stated is truth. In effect parents, primary school teachers, and religious instructors all shape our ‘common sense’. Later in life it is difficult for us to unlearn these truths. How many of us still believe that sound travels better through liquids than through air or that Ben Franklin's kite was struck by lightning? How much harder is it to change our perceptions of risk?

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