And tonight we want to show you some of the new ways highly organized crime rings are stealing at the supermarket billions of dollars every year. Some companies are even hiring undercover detectives... See More
And tonight we want to show you some of the new ways highly organized crime rings are stealing at the supermarket billions of dollars every year. Some companies are even hiring undercover detectives who could be pretending to shop right alongside you. Abc's nick watt takes us down the aisle. Reporter: A guy in texas wearing a suit, swiping a tray of diabetic test strips, total value, a thousand dollars. These women got a hold of keys to display cases. I'md every time how they can come in a store within anywhere from four to five minutes and walk out with anywhere from 400 to $2,000 worth of merchandise. Reporter: When a shoplifter walks out that door, that's when the games begin. They're the james bond of retail crime, armed with tracking devices, radios, and hidden cameras. These are visor cams. Reporter: A shoplifter might think when he's out the door, he's in the clear. Not so. With today's technology, i can have your face throughout the country in less than ten minutes. Reporter: Shoplifting hot spots. This cost the retail sector more than $30 billion every year. Just like a fortune 500 company. It's just organized. Reporter: Pi's who operate out secret warehouses, they bust open the gangs and help lead overstretche police departments to their prey. Everything from meat to razors, to milk. Milk? You name it. Sometimes we get rings that just do alcohol. Some that just do meat and seafood. selling stolen clothes and perfume. All that down here is victoria secret. Expensive. It's not rip-off stuff, not counterfeit. Reporter: Genuine but cut price katy perry perfume right there. List price is 90 bucks. She's selling it for 59. She probably paid 10 for it. Reporter: Two down, but many, many more to go. Nick watt, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.