Alright so, the game's about playing how you want, right? Why not take the legal route?
When recieving a mission targeted towards an individual, you'll have the ability to go to the local police office and file a character specific complaint against them (crepes/blahds - visual assault, slum dwellers - loitering, drug dealers - drug dealing, merchants - price gouging, you get the point.) After which youll be told to come to court tommorow.
Every day at the same time there will be 1 meeting at a courthouse, where youll be able to go up and have a "very fun" chat and get told what your target is getting punished with..... or told to come back tommorrow.
While everyone is walking into the courtroom you'll be able to bribe them, whether that be the jury with snacks (more likely to deem him guilty), the guards with money (wouldn't intervene if you decide to assault your target), or the judge with something else (Skip the trial, instant death penalty)
Alternatively, you could plant sugar in your targets home and give the cops an anonymous tip to let them deal with it that way. either works.
also vampires can be hired to better represent you in court.