Hriston
Dungeon Master of Middle-earth (He/him)
Very few places are innocent until proven guilty. Most you end up in jail until they find time for you and then the lawyer you get is assigned.
Oh for sure. He's already in custody. The watch captain that the PCs reported the priest to is a real do-gooder and wasted no time snatching up the priest and his acolytes, and searching his residence for evidence. So he's being treated as guilty in that respect, but like you said, that's how it is most places. Right now he's being held in the keep, awaiting trial.
So, it is bribe time, the more people the priest can bride the better off he will be when meeting the judge. He will start with the jailer; who will provide him with a lawyer (100GP per CHR point). From here it is all about money, the lawyer will act as the go-between and will help bride people. I would create price sheet with chances of a brides. Example: witness for the priest: 1SP for every point of CHR of the witness. 10GP for documentation proof of good deeds.
The priest has a tidy sum of money hidden in his quarters that wasn't found by the watchmen who arrested him with which he can bribe people. I was thinking that he would offer this directly to the inquisitor, who could retrieve it under the pretense of collecting evidence, but you've given me an idea. The castellan, who is basically the priest's jailer, has a scribe who could be appointed to represent the priest, although I'm not sure how bribable I'd want either of them to be. There's also a lower level scribe that works in the outer-bailey. He's probably not above taking bribes.