I believe the local police force from my hometown (not necessarily where I live now, though it's not too far from Philly

) would fit nicely with the Shire's Shiriffs.
When my parents first bought their house, the previous owner left it a mess. My dad went out to clean the gutters over the garage, and was startled by a strange voice behind him, which turned out to be from a uniformed officer. He'd come to welcome us to the new house and then spent some time helping my dad clean up.
Anyway, the police are very nice there.