Well the thing with the trial is that if he loses because of bad luck(they'd be roll based, after all), there are certain "accidents" that can happen, mostly with the friends he has. "Accidents" that would leave him looking dead, but which would really give him freedom.
The trial idea is just so full of RPing potential. It'd be awesome.
But the thing is, having her randomly pop up and whisk Satoshi away would be a cop out(pun intended), and really having Inferno Cop look away from a second for her to attack is just a recipe for him forgetting about this whole thing and trying to conquer the castle of the guy bleeding on the floor instead of helping him, because HEY CONQUERING A CASTLE THAT'S NOVEL
It's in character okay.
Just, this arrest has had a lot of buildup, and a lot of twists and turns. It'd be kinda lame if I got lolnoped out of it.
Can't she hold back attacking or whisking until he's in a jail cell waiting on Inferno Cop to make a phonecall? He'd be looking away, it's the opportunity she's waiting for.
And Lawrence is locked in his cell dude, he can't do shit. And he'll be... otherwise occupied.
For the trial... I'm still figuring the mechanics out, but I have an idea. It'd be d20, with 1-10 being guilty and 11-20 being not guilty. Those can be modified depending on if the defence has a point (-1) or the prosecution does (+1). If the defence has two arguments and the offense has none, it's be 9-20 for not guilty on the roll. The rest would basically just be a trial, back and forth.
Oh, and one dice roll per juror.