That kind of thing worked with Oriko, but Oriko is both far more reasonable than Airi, and has the very real threat of sudden murder from Homura to contend with if she breaks parole. I'm not at all convinced that we can contain Airi meaningfully that way, especially since keeping her on such a light leash means that it'd be trivial for Hijiri to team back up with her and their issues to feed on each other again.
We have the prospect of de-Witching as incentive to make Anri cooperate, and she would have restrictions put on her O&K don't.
Not having magic limits her a lot, and if we do get a tracking enchant on her
and someone to keep an eye on her (maybe living with her?), then the chances she can pull anything -at risk of Yuuri staying a Witch forever- are pretty low.
Hijiri is someone whose problems need to be solved before too long, anyway. I don't think going back and forth between Asunaro and Mitakihara would be trivial for her... and her (or anyone's) threat can be mitigated by more security measures, like more securitygucas.
There's the political optics to consider, too. Airi stole a Clear Seed. If we're seen as having gone very light on her by the community at large, that's going to invite lots of further abuses by unscrupulous types.
This sounds extreme. We need to deal with teenagers, and for all her repressed guilt and craziness, Anri is a teenager, too. If we don't treat her in a way she feels fair, we'd be better off gemming her, since we'd be turning her permanently into an enemy.
We can explain the megucas how we're trying to solve the issue with Anri the best way we can, and they
will like the fact we're out to help, not to punish, even if they do something wrong. That's
good in that meguca would feel better with us taking decisions and actions involving them, as we're wont to do.
Any 'unscrupulous' types that try to abuse that need to be dealt with by dropping the hammer of god on them. Because they would be abusing the fact people are allowed to make mistakes. Someone, at some point is gonna pull shit, anyway; we just need to make sure the unscrupulouguca know where the line is drawn.
EDIT: Also, we're gonna have to do
something about talking with Anri about gassing people and such.
[Q] Theraphystguca where are you