Unstaffed, digital supermarkets transform rural Sweden
theguardian.com
theguardian.com
And I am guessing that it is linked to your home address and so they can also easily create criminal charges that would stick since you are positively ID'd.
The only problem would be people wandering in with no ID. But they can't since it's required to open the door.
I guess the purpose of the camera is more to see if everything is okay with the shop than to prevent shoplifting.