Costigan would want to investigate the fire(s) in Phorezton and would actively try to find a way to be thrown in jail there temporarily to learn what he can about the agitated people (and maybe get in a good fight).
Totally willing to have him banned from re-entry to Phorezton or Bresilyk entirely, if appropriate, plus whatever other consequences you might see fit.
Re: TROUBLE WITH THE LOCALS?
Costigan would want to investigate the fire(s) in Phorezton and would actively try to find a way to be thrown in jail there temporarily to learn what he can about the agitated people (and maybe get in a good fight).
Totally willing to have him banned from re-entry to Phorezton or Bresilyk entirely, if appropriate, plus whatever other consequences you might see fit.