[vidarh]

You're on multiple cameras for most of the self-checkouts in the UK, with at least some both capturing your face and an overhead view that will trigger a "are you sure you scanned this" complete with replay of what looked to the system of you potentially failing to scan an item before putting it on the scales on the other end if it looks like you move something past the scanner without the scanner triggering.

The system will also typically signal for an attendant if you after a short amount of time ensures the weight on the receiving end matches the expected weight of the items scanned so far.

There's not all that much trust involved in it, and I think just being aware of the cameras will make most people who might be tempted think twice.

Of course it's possible to steal still, but it doesn't need to be perfect, it just needs the shrinkage to add up to a lower cost than having more people at the tills.

[swah]

I think OP was afraid of making a mistake and stealing by accident.

I also don't like to use those systems if I have many hard to pack items. But at some point I guess you just remove humans completely.