I'm a Role Cop.
I targeted TA on N1, and he's a 1-shot Forsaken-immune Thief.
I targeted Jimmmmm on N2, but got a no result result. Hence knowing I was blocked. Commuting or Hiding could have caused a no result, but Jimmmmm didn't claim those.
Lots of investigative roles claimed/flipped:
Tainted Cop (ADK), Tracker (Jimmmmm), Voyeur (Faust), Thief (TA), Role Cop (Ash)
The funny thing is, except for Tainted Cop, this isn't the craziest thing to see. You've got Tracker and Voyeur, which are bits of a JOAT, and you've got Thief and Role Cop, which are both weaker than full cop since they focus on Flavor and Role (former and latter). I don't know what Tainted Cop is, except I'm guessing that it's a cop that looks for the "tainted" players. Maybe that's the FBI Agent (SK Cop) of the game?
That'd be a lot of smaller investigative roles in the game. Not everyone has claimed shots, of course, so we don't know the limitations there.
If most or all of these are true, scum has roles that would help deflect this. Redirector is clearly one. Maybe there's a Godfather type role, maybe ninja/strongman?