Either that or he'd be looking at the legal defenses which logically exist in the Worm-verse. Say being placed in life-or-death situations.
Why? You can defend yourself with lethal force in the U.S. under certain circumstances - being taken prisoner, enslaved, drugged to the gills, and threatened with military-grade weaponry could qualify. Combine that with the "Coil went after my civilian identity" defense in the court of public opinion and there's a good chance Sirin can escape the full weight of the law.
(She might get probation or some kind of punishment, but she might not get life in prison, the Birdcage, or the death penalty.)
If Taylor knows that they know that she fought her way out and Taylor knows that they accept her reasons for doing so .. well, that might start the process of building some trust with her. That's something they've been trying *cough*failing*cough* to do for most of this story. Anyone want to lay odds they'd at least consider that opportunity?
I like your idea. The only problem I can see with it is Taylor. She'd have to give the PRT or Protectorate the time of day and, unless something changes (which it might), that doesn't seem like something she's going to do.
Sure, her Telepathy could straighten out most communication problems. But her mind reading powers are in the same boat as her Pre-Cog: useless if she doesn't decide to use them (or remember to when stressed (heck, the fact that she's starting to read people despite herself might actually help her in the long run)).
If they find proof of that, they'll also find proof that she was a hostage at the same site. The PRT has no leverage over someone who committed justifiable homicide in self-defense.
That, and publicly wrangling her into submission with charges like that, success would actually be a worse outcome for the PRT and Protectorate (because they'd inherit an uncooperative member who could lightly be called a public relations nightmare on their team). If they do try to use this event in their favor, it'll probably be along the lines of helping her keep it quiet. This outcome is actually in both parties favor because neither side benefits from the public knowing what happened (for the PRT/Protectorate it's a PR issue. For Taylor it's a way to keep the other players from looking at her as TOO dangerous to let be. This might not be a problem for her, but there are people she cares about who wouldn't do well with the gangs gunning for them).
Although, since Taylor doesn't trust authority farther than she can (non-TK) throw it, I doubt she'll take any type of approach the PRT come up with favorably.
Personally, though, I don't think the PRT will use this even to strong arm Taylor. But I can easily see her expecting them to do it.
If there was a betting pool on how quickly she freaks out when the Hero's approach her... Well, I know where my money (all 23 cents!) would be.