Ciould this be done with a calculation on the add reminder window field notify assignee, by matching the raise users location to to a group of the same name, the analysts would be in that group and the calulation determines it is that group that gets the notification?
Does that sound possible?
On your location list I'd add in the group that should work on issues logged from this location using Object Designer and Windows Designer. Administer these in and then in the process assign to the group using a value type from the user/location/group attribute.
Just an idea