In this articleWMTFollow your favorite stocksCREATE FREE ACCOUNTThe Walmart logo is seen outside of one of its stores in Selinsgrove, Pennsylvania.Paul Weaver | Lightrocket | Getty ImagesWalmart has started giving store-level associates body cameras to wear as part of a pilot program at some of its U.S. locations, CNBC has learned. It’s not clear how many of Walmart’s stores have the recording devices, but some locations now have signs at entry points warning shoppers that it has “body-worn cameras in-use,” according to witnesses and photos posted online. In at least one store in Denton, Texas — about 40 miles north of Dallas — an associate checking receipts was seen wearing a yellow-and-black body camera earlier this month, according to a shopper who shared a photo with CNBC. “While we don’t talk about the specifics of our security measures, we are always looking at new and innovative technology used across the retail industry,” a Walmart spokesperson told CNBC. “This is a pilot we are testing in one market, and we will evaluate the results before making any longer-term decisions.”Walmart, the largest nongovernmental employer in the U.S., is testing the technology after smaller retailers started trying body cameras at their own stores as a way to deter theft. Body cameras and the footage they gather are commonly advertised as a way to prevent shoplifting, but Walmart intends to use the tech for worker safety — not as a loss prevention tool, according to a person familiar with the program.In a document titled “Providing great customer service while creating a safer environment,” staff are instructed on how to use the devices, according to a photo of the document posted on an online forum for Walmart employees and customers. It instructs employees to “record an event if an interaction with a customer is escalating” and to not wear the devices in employee break areas and bathrooms. After an incident occurs, staffers are told, they are to discuss it with another team member, who can help them log the event in the “ethics and compliance app,” according to the document. The body cameras at Walmart come during the thick of the holiday shopping season, when retail employees work long hours and face tough interactions with customers that can be more tense and hostile than usual. “There’s too much harassment that goes on throughout the year, but especially during the holiday season … it’s even worse,” said Stuart Appelbaum, president of the Retail, Wholesale and Department Store Union. “Everyone is stressed out. If they can’t find the item they’re looking for, they get upset and whom do they blame? They blame the shop worker.” However, it’s unclear whether body cameras actually help to deescalate conflict. Appelbaum, whose union does not represent Walmart employees but includes staff from retailers such as Macy’s and H&M, said the RWDSU is concerned that body cameras are more about surveillance and deterring theft than making employees safer. “Workers need training on deescalation. Workers need training on what to do during a hostile situation a …