I'm confused because I thought the issue was taking one's private computer and confiscating private emails, not public. If the emails were sent to the public email address for a Commissioner, they should be able to find it on the County's server, without need to take any computer from anyone.
The example I gave you of how easy it is to catch someone was my experience on government servers. Since this whole thing has gotten so mucked up I do not know if we will ever get back on track.
Current law and court precedent say that emails covering government business are public records even if sent to private email addresses.