Walgreens’ plan to combat increasing theft by locking products up at their stores has hurt sales, the company’s CEO said in a recent earnings call.

Retailers have been faced with increases in shoplifting and retail theft. But anti-theft prevention can hurt retail sales, says the CEO of Walgreens.

Walgreens’ strategy of locking up merchandise — from deodorants to bags of M&M’s — to deter theft has backfired, according to CEO Tim Wentworth. “It is a hand-to-hand combat battle still, unfortunately,

Walgreens has come to find out that both shoplifters and customers are turned off when items are locked away. In an earnings call on Tuesday, the drug store’s CEO Tim Wentworth blamed declining sales on locked up items: “When you lock things up

Some retailers, like Walgreens, report that locking items behind displays to deter shoplifting may not be effective. Walgreens CEO Tim Wentworth recently described theft prevention in stores as an ongoing and challenging struggle.

Many retail stores across the Bay Area have turned to locking up commonly stolen items to prevent against shoplifting. But there is a downside to that tactic, Walgreens CEO Tim Wentworth said. “When you lock things up,