[quote=@Pirouette]
<Snipped quote by AtomicNut>

I might have had Mi take the stairs though. She did inspect every floor. 
[/quote]

Still would need a key tho, else the security is portrayed as incongrous. Otherwise the clinic would have been razed long ago by pesky CCG.

I mean ghouls can probably bullshit an excuse to enter,the system is to deter leaks to CCG, but it is more subtle than just stomping in, ignoring everyone and pressing an elevator button.