In the UK if you want to buy food in the supermarket you have to have a HD video camera pointed in your face (often two cameras). Which supermarket is that? I'

In the UK if you want to buy food in the supermarket you have to have a HD video camera pointed in your face (often two cameras). Which supermarket is that? I've never seen anything overt like that where I usually shop and doing it covertly would be risky in multiple ways.