If Soul Mages themselves commit crimes, things become difficult to handle. Reforming them is not easy, as they would set up psychological defenses and prepare mazes.
There are many types of Soul Spells, which can infuse the criminal with positive energy on the spiritual level; the experience is also wonderfully pleasant. However, the specific effects vary. If the timing is chosen properly and there's a deep understanding of the criminal's emotions and psychology, applying the spell at just the right moment can yield a very clear effect, making the criminal feel the best.
If the timing is incorrect, and the criminal is in a state of withdrawal, irritation, or resistance, then even the most wonderful Soul Spell may be greatly diminished in effect. It might work, but not where it itches most.