Similar complaints have been made by groups such as Making Change at Walmart, which has described the lock-and-key policy as a "discriminatory practice."
Grundy is being represented by women's rights attorney Gloria Allred, who said they're seeking a court injunction to halt Walmart's practice of locking up these products.
Walmart spokesman Charles Crowson said in a statement that the company does not discriminate, but that it will review Grundy’s complaint. He said some products, such as baby formula and razors, are more frequently targeted by shoplifters, and that certain products are kept locked because of a greater risk of theft.
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"We're sensitive to this situation and also understand, like other retailers, that some products such as electronics, automotive, cosmetics and other personal care products are subject to additional security," Crowson said. "Those determinations are made on a store-by-store basis using data supporting."