Originally Posted by
rumbataz
Exactly, that's where it needs to be - near the customer satisfaction machine where you register your happiness/disgust with T5 security.
Putting it out there would be open to abuse though - passengers could wander off to Boots for a while and then pop back to scan their BP.
I'd say it should be right at the point you exit the scanner - before you get pulled aside for secondary searching. That way, everyone is measured on the how long it took to be scanned, rather than to be cleared which can indeed be outside HAL's control.