used to work at Walgreens not long ago. This is how walgreens addresses stealing:
Employee: "hey, non security employee... keep an eye on that person that is likely stealing".
The person steals, cops are called, thief is long gone. Thief comes back. Repeat.
At least once while I worked there, a single man stole over $500 worth of ice cream in a few minutes. I went to Walgreens recently to buy some sleeping pills. $27.99 for a single bottle... And literally every few seconds: "customer service needed in insert aisle"