How many refugees are we talking about, at least for the initial influx?

In terms of access control, magnetic card swipe is probably the way to go if we can get it. For one thing, it allows us to log who is entering what rooms and when. Key code locks are all right, but there's always the chance that the combination could get out. For areas we're not currently using, such as some of the upper floors, it would probably be okay just to install regular locks.

Unfortunately, I don't have the technical know-how to install electronic systems, so I'll leave that part up to Mercury.