If you walk past a shop and see a knife displayed in the window with a price tag beside it, you probably won’t stop to ask yourself a legal question.
You will simply think: That knife is for sale.
But the law can be rather particular about words.
In Fisher v Bell, a shopkeeper displayed a flick knife in his shop window. The knife was prohibited under legislation, and the shopkeeper was charged with offering it for sale, contrary to the law.
At first glance, the case seems straightforward.
The knife was in the shop. It was displayed in the window. It was available for purchase.
So how could the shopkeeper possibly argue that he had not offered it for sale?
Well, according to contract law, displaying an item in a shop window is generally not an offer. It is an invitation to treat.
And that distinction made all the difference.
An invitation to treat is essentially an invitation for customers to make an offer. When you take an item to the cashier, you are making the offer to buy it. The shopkeeper then decides whether to accept or reject that offer.
So, legally speaking, the shopkeeper in Fisher v Bell had not made an offer simply by putting the knife in his window.
The court therefore found him not guilty.
And this is probably the point where the average person reads the case and thinks:
Wait. What?
Because from an ordinary person’s perspective, this seems unnecessarily technical.
If a shopkeeper deliberately puts a knife in his window and displays it to potential customers, what else are we supposed to understand him to be doing?
But this is where Fisher v Bell gets more interesting than simply being a case about invitations to treat.
Was the law being ridiculous, or was the court simply doing its job?
It is tempting to say the former.
After all, the whole purpose of the legislation was to prevent the sale of a prohibited weapon. Yet the shopkeeper escaped liability because Parliament had used the words “offer for sale”, and those words already had a particular legal meaning.
The court could not simply decide that, in this particular situation, “offer” should mean what an ordinary person might understand it to mean.
And perhaps that is the uncomfortable lesson from the case.
The law can sometimes be less interested in what something looks like and more interested in exactly what the words mean.
That may sound frustrating, but there is a reason the distinction exists.
Imagine that every item displayed in a shop were legally considered an offer. A shopkeeper could potentially become contractually bound to sell an item to the first person who attempted to buy it, even where there was a pricing mistake, the item had already been sold, or there was some other legitimate reason for refusing the transaction.
Treating a display as an invitation to treat gives the seller the opportunity to decide whether to accept the customer’s offer.
So the legal rule itself isn’t necessarily foolish.
What looks foolish in Fisher v Bell is the mismatch between the ordinary meaning of the words used by Parliament and their technical meaning in contract law.
And that raises a bigger question: How far should courts go in interpreting laws that seem to produce an absurd result?
The answer is not as simple as saying, “The court should just use common sense.”
Courts interpret laws. They do not normally get to rewrite them because they think Parliament could have chosen better words.
If Parliament says that it is an offence to offer a prohibited item for sale, and “offer” has a settled legal meaning, the court may have little room to stretch that word simply to achieve what appears to be the intended outcome.
In fact, the outcome of Fisher v Bell reportedly prompted Parliament to amend the legislation so that the wording covered the display of such weapons for sale.
And perhaps that is the most important part of the story.
Sometimes the problem isn’t that judges don’t understand common sense.
Sometimes the law has been written too narrowly.
The Fisher v Bell case is therefore a good reminder that legal language matters. A single word can determine whether someone is guilty or not guilty, whether a contract exists or does not exist, or whether a person has a legal right at all.
To the ordinary shopper, the knife was for sale.
To the law, it was an invitation to treat.
And sometimes, unfortunately, both can be true at the same time.
Story Adwoa Serwaa Danso
(Ghana School of Law, BL Candidate)