We've only got one E911 center here, it's co-located with the ambulance shed in the largest city in the county. They are their own entity, money/manpower everything.

The Sheriff's office is located here in the jail (well up stairs anyway) and we ARE part of the SO. I am the only Police officer dispatcher (NOT POST certified anymore though) and I think that is one reason the Sheriff gives me so much leeway on what I do as far as handling problems that people call in. Not to mention that I save having to call out a Lot of deputies.