It's a crime to carry a knife in a public place without a good reason. It doesn't matter whether you ever take it out or threaten anyone — just having it on you, in your bag, or in your car can be enough. Police don't have to prove you meant to use it. The whole case usually turns on one thing: did you have a lawful reason to be carrying it?
The whole idea in one picture
It all comes down to your reason
Carrying a knife in public is only legal if you've got a lawful reason for it. Here's how these matters tend to run — and where the case is really decided.
When you can be charged
You don't have to use or even show the knife. Simply having one in a public place, with no lawful reason, is the offence.
Situations that count
A knife in your bag, pocket or car
A concealed or utility blade in public
A knife at school, a park, or a public event
Found with one during a random search
"Knife" is broad
It includes folding and retractable blades
Even a small everyday knife can count
It's about where it is, not how big it is
Not a lawful excuse: carrying a knife for general self-defence doesn't count — and neither does "it was just in my bag" or that it's part of your outfit. That catches a lot of people out.
What is a "lawful reason"?
This is where most cases are won or lost. A lawful reason depends on the state, but generally includes:
Usually accepted
Using it for work (chef, tradesperson)
Taking it to or from work, or the shop you bought it
Lawful sport or recreation (fishing, camping)
Cultural or religious reasons (e.g. a Sikh kirpan)
Usually not accepted
General self-defence
"It's just part of my stuff"
Carrying it as a fashion or style item
Any reason where you scare or endanger others
Whatever the reason, it has to be reasonable in the circumstances — and you can't carry the knife in a way that causes fear or risk.
How a charge usually starts
Police can search you if they reasonably suspect you're carrying a weapon. Charges commonly follow:
How it comes up
A stop-and-search
Reports of suspicious behaviour or threats
Entry checks at venues, festivals or schools
Traffic stops or public transport checks
What makes it worse
Using it to threaten or injure someone
Carrying it near a school, event or nightclub
Being intoxicated or aggressive
Already being under a weapons ban
If a knife is found and you can't give a lawful reason, you can be arrested and charged on the spot.
What happens at court
These matters are almost always handled in the local or magistrates' court. To find you guilty, the prosecution has to show:
You had a knife in a public place.
You had no lawful reason for carrying it.
The item meets the legal definition of a knife — including folding or retractable blades.
Penalties climb sharply if the knife was used or shown in a threatening or violent way.
Choose your state
Penalties where you are
New South Wales
NSW
Most serious cases — top of the scale
Up to 2 years in jail and/or a $5,500 fine
That's the usual range for carrying a knife. Serious prohibited weapons, like flick knives, can reach much higher.
Read this as a ceiling, not a forecast. For a simple knife-carry with no threat, courts commonly impose a fine or a good-behaviour bond rather than jail. The top figures are for the more serious end.
When it's more serious
Which court
Common defences
Every case turns on its own facts, but these are the kinds of arguments a lawyer might use:
Lawful purpose
You had a genuine reason, like work, sport or cultural use.
Carried lawfully
You were transporting it securely and properly.
It wasn't a knife
The item didn't meet the legal definition — e.g. a tool with no blade.
You didn't know
It wasn't yours, or you didn't know it was there.
Charged over a knife? Talk to a lawyer.
So much rides on the "lawful reason" — a lawyer can put that case properly. We can point you to ones who handle these matters in your state.
This page explains how these charges generally work — it can't tell you what will happen in your case. Penalties shown are the legal maximums, which courts rarely reach for a simple knife-carry. If you've been charged, talk to a criminal lawyer before deciding anything.
Criminal lawyers
Hiring a Criminal Lawyer is Essential if You’ve Been Charged
While we don’t provide legal advice—as every case is unique and only a qualified lawyer is permitted to do so—we’ll do our best to guide you with relevant general information. If we’re unable to assist, we can refer your query to a criminal lawyer.
