you can't call for help if you don't have a pass

I dare not say where i took these photos, in case there's some confidentiality thing that i'm not aware off and i cannot anyhow take photos of this place.

Well, you just have to know it's a lift in an office building. I just found this rather ... interesting.

We were coming back from lunch and taking the lift up, so i asked, 'hmm, i wonder what this does'



(if there WAS some kinda confidentiality thing i'm screwed then the CCTV would have caught me taking a pic of this haha)

Anyway above the lift buttons there is this white box which is obviously a card swiper. (maybe there's a better name like.. card reader. Access Restrictor. ynkow)
It is used basically in every kinda of secure office building? So that only workers with a pass can get past these access points.

The thing is, why is there one in the lift? It certainly isn't to restrict access, since you can press the buttons without swiping any card.

Our conclusion was that.. swiping the card allowed you to call for help? Like to the security room or something so you can go 'HELP I'M STUCK IN THE LIFT' or something.
Maybe it's a subtle message to workers to keep their passes on them at all times.
I can imagine an advertising campaign for this:






They are so evil.