Maybe there could be some sort of all-gem trading system in-place, since you can't loot items?
With enough population, I don't think it would be impossible to establish a trading hub in the tunnel. Folks would probably attempt to disrupt it, but that just opens up the doors for a police guild to keep the order!
In general, I agree. It's not needed right now, but maybe some day.... ?
<Tunnel Snakes>
vs.
<EC Police>
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