How was it, that Dumbledore not see that the best wouldn't be served by letting his daughter, or others like her, rot in some prison for the rest of her life where she was likely to go insane rather than learn to regret her actions? He did not say that of those things however, but only stood up, and when he spoke it was with a tired and quiet voice.
"If someone is put under the Cruciatus long enough they go insane and are treated at St Mungo's, even after the spell is lifted. The effects are still there and no one denies it. If this spell stripped her of her emotions, of her ability to know right from wrong, is that then not also spell-damage? Even if the spell itself is lifted?" he asked. "I'm not suggesting we send her home, I'm suggesting that we give her healers to help her with the damage while still keeping her locked up."
He sighed. "If there is no damage, if she's chosen this entirely by her own free will, then that's another matter. But I know my daughter. This is not her. Whatever she's been turned into is a result of that spell."
"What does it say about us, Dumbledore. If we just lock people away without caring for the reasons? I'm nor arguing for the likes of Bellatrix or Rabastan who has made a life out of killing and crime. But when we have children brainwashed, how does it serve the victims to lock them up and forget about them, rather than help them regret their actions so that they can ask for forgiveness. Maybe it won't always help, maybe some people are lost, maybe Lily is, but what if she's not?"
"There should be another way. Not just for Lily, but for others like her as well. Don't we owe ourselves to find out if there is hope for her soul? Before giving up on her and making her spend the next hundred years in jail?"