There is usually one to two persons supervising a row of self checkout machines and they claim to randomly sample people, though I've never seen them doing that

There is usually one to two persons supervising a row of self checkout machines and they claim to randomly sample people, though I've never seen them doing that. Though I think these two things act as a deterent to stealing. Personally, I love self checkout in switzerland. 20 checkout stations vs. 5 is faster, tell me what you want.