Yuuki did say he had connections in the precinct. Mangaka tend to do the ugly/overweight=evil (a trope I loath, it always feels so lazy), and by this metric the cop lady feels kinda sus.
He's always on his laptop when we see him... Would be fucking abhorrent if all the money Mako made selling herself went back to the guy who was effectively selling her off, which is exactly why I can see it being the case.