Sewer Jack
The Sewer Jacks are a specialised force, under the command of the City Watch, whose purpose is to keep the sewer system and the Undercity secure. A certain amount of courage is required to police the fetid tunnels beneath Middenheim, but the Sewer Jacks are less choosy in their recruiting policy than the other armed forces—partly because there is nearly always a shortage of volunteers for this dangerous and unpleasant duty. A typical patrol of Sewer Jacks is 6-8 strong.[1a]