They will catch those whose ASIC has unfortunately blown upside down in the wind. They will make an example of those individuals. Puff out their chests and say what a great job they're doing.
IsDon, Technically they could do that but my experience is that the Transport Security Inspectors (TSIs) are not an unreasonable bunch. I would expect they would target those who are deliberately flaunting the regs by not displaying an ASIC at all, trying to use someone else's ASIC, or using one that has well and truly expired.
All these examples are well known and well documented largely thanks to posts on PPRUNE.
