The Underwatch patrols The Underbelly, and are tasked with keeping unauthorized individuals out. They also serve to protect and assist The Cleaners, the group tasked with cleaning out the vermin from the lower regions of the city, should they need it. The current SubCaptain of the Underwatch is Adrew Morfin. The Underwatch tends to be heavily Subhuman, as those that join the City Watch usually get shifted to this undesireable position.
Rumors persists that the Underbelly goes much further down than anyone realizes, and the Underwatch is there to do more just keep naer-do-wells out of the sewer, as Korpesh is searching the depths for riches.
The official response to these accusations is always a weary admission that Valenci is built on the ruins of an older version of itself, that no there is no treasure down there, and yes you can come down and look, just sign up for the Cleaners and report to work firstday, and you’ll see all of the Underbelly you want to. This has done little to either reduce the speculation or increase the enrollment in the Cleaners.