Barnet knife sale case puts youth safety rules in focus

demoduck.co.uk editorial team 2026-06-04 18:23 3 min read

A kitchen knife and various raw meat cuts arranged on a wooden board.

A Hendon shop owner has been fined after selling a kitchen knife to an undercover 15-year-old during a Barnet Council test purchase.

Mustafa Deger, owner of the convenience and household goods shop Good for You at 114 Brent Street, Hendon, pleaded guilty at Willesden Magistrates Court in May after the sale was made during an undercover operation in December 2025.

The court ordered Deger to pay fines totalling £4,100. The case has been highlighted by the council as part of its continuing enforcement work around knife sales and youth safety across Barnet.

Residents with concerns about how a business is operating in the borough can contact Barnet Council Trading Standards at trading.standards@barnet.gov.uk. Reports can also be made through London Trading Standards.

£4,100 penalty after guilty plea

The prosecution followed a test purchase in which an undercover 15-year-old was sold a kitchen knife at Good for You on Brent Street.

Deger later pleaded guilty at Willesden Magistrates Court. The penalty imposed by the court totalled £4,100, according to Barnet Council.

The legal age to buy a knife in the UK is 18. Retailers are expected to have procedures in place to prevent underage sales, including staff training, age checks and safe storage or display practices where appropriate.

Barnet Council said businesses in the borough had previously been visited by Trading Standards officers and given advice on correct knife storage and sales techniques. Those visits were also intended to help traders put a due diligence defence in place.

Undercover test purchases across Barnet

The Hendon case came from a wider programme of undercover test purchasing visits carried out by the council’s Trading Standards team.

The visits were conducted as part of Operation Sceptre, a national policing initiative focused on reducing knife crime and removing weapons from circulation. In Barnet, police cadets were tasked with attempting to buy knives as part of the checks.

Test purchasing is used by enforcement teams to identify whether retailers are following age-restricted sales laws in real conditions. For shop owners, the results can lead to advice, warnings or prosecution depending on the circumstances and evidence gathered.

Barnet knife sale case puts youth safety rules in focus

The council’s decision to prosecute signals that it is treating knife sales to minors as a public safety issue as well as a retail compliance matter.

Knife disposal routes in the borough

Barnet Council has also pointed residents towards safe disposal options for knives and bladed items.

Last year, the council introduced a permanent knife surrender bin on Bunns Lane, NW7, alongside a one-day mobile bin in the borough. The work formed part of a London-wide initiative funded by the Home Office to tackle knife crime.

The bins are intended to provide a safe and anonymous way for people to dispose of knives and other bladed weapons. The council says anyone taking a knife to a surrender bin should wrap it first in several layers of cardboard or paper and secure it with sticky tape so the blade is fully protected and the knife cannot easily be removed.

Although carrying a knife in a public place is an offence, the council says it is considered reasonable to carry it directly to a knife surrender bin when it is wrapped in that way.

Council warning to retailers

Cllr Sara Conway, Barnet Council’s Cabinet Member for Community Safety and Chair of the Safer Communities Partnership, said the prosecution showed the council would act against businesses that break the law.

“This prosecution sends a clear message, that we will not hesitate to act swiftly and firmly against any business found to be breaking the law and compromising the safety of our residents,” she said.

She described the case as another result for the council’s Trading Standards team and its long-running partnership with local police cadets.

“Barnet’s community safety partnership is committed to protecting our communities, and ensuring businesses operate within the law,” Conway said.

Source: Barnet Council

Context & actions About this article

Source check Source trail

This report is based on Barnet Council’s account of the prosecution, court outcome and local Trading Standards enforcement work.

Checks

Matched the named defendant, shop and Brent Street address against the council statement.
Confirmed the court outcome reported by the council: a guilty plea at Willesden Magistrate...
Kept dates visible for the December 2025 test purchase and May court hearing.
Separated council enforcement claims from general public guidance on knife disposal.

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