Why are UK supermarkets locking chocolate now?

Reports point to organised theft targeting small, high-demand items that are easy to resell. Chocolate theft fits that pattern. Locking stock and adding tags can deter offenders, protect availability, and support evidence gathering. Retailers say these steps are temporary and focused on the highest-risk lines and stores.

How could chocolate theft affect grocer margins?

Shrink removes sellable units and adds write-offs. Security measures add costs but can reduce losses. If theft drops and availability improves, gross margin pressure can ease. Investors should watch disclosures on retail shrink, stock loss lines, and any quantified returns from new loss-prevention spending.

What should Tesco and Sainsbury’s investors monitor?

Track shrink trends, gross margin commentary, confectionery availability, and like-for-like sales. Look for notes on security capex, labour hours at self-checkouts, and customer feedback where items are locked. Evidence that losses are falling without hurting sales is the key sign of success.

Will locking items hurt customer experience and sales?

There is a risk of friction and fewer impulse buys. Retailers can limit this by locking only the worst-affected items, placing stock near staffed areas, and offering quick help. If processes stay fast and clear, stores can cut theft while protecting conversion and loyalty.

Law and Government

February 24: UK Grocers Lock Chocolate as Theft Surge Hits Margins

ByHuzaifa Zahoor February 24, 2026

Chocolate theft is surging across UK supermarkets on 24 February, with stores locking confectionery to curb organised shoplifting. This shows persistent retail shrink and rising loss‑prevention costs that can pressure margins. For investors in UK grocers, the focus is how long security controls last, what they cost, and whether availability improves. We explain what this means for profitability, the KPIs to track at Tesco and Sainsbury’s, and how policy and store practices may evolve.