SheWantstheD&D
First Post
It was simply a missed word. I meant to say a special key, like a master key or magical key.
So a regular key is used so that everyone can go about their business regularly without hassle. But if the door is deadlocked then those people suddenly can't get in and have to go to a supervisor, or BBEG, who has the master/special key. This serves to alert the boss that someone tampered with the lock and prevents people from getting in but doesn't lock the boss and his underlings out from all their rooms.
Ooooh I like that idea!