What I have seen on Swedish police they usually carry some kind of Leatherman multitool. They never use the knife as self defence. One or two carried the Fallkniven F1 and one actually had the Fallkniven S1, but that was in northern Sweden (like Alaska).
For some reason the average joe here gets more "intimidated" by a police carrying a big knife than they get by the SIG P226 they also drag along.
What do you need the glass breaker for, are you not issued an ASP or similar?
I usually recommend Fallkniven for everything, but since they do not have a swish swosh really fast opening folder (until April) I would go with the Emerson CQC7B, even though I have not tried it myself.
The easist way to find out what kind of knife you need is to ask around at work. What do people usually use a knife for?
Is there a big need to stealthly kill off bad guys, then a Sykes Fairbain is the ultimate choice

It is the only thing that knife does.
How long is the "response time"? The time from you discover that something has to be cut to the actual cutting. Do you pry and abuse stuff?
Anyway. Let us know what you choose.