Eradicating crime entirely is an impossibility.
But if prison reform is successful enough, the crime rate will continue to decrease. It used to be very challenging to rehabilitate criminals, and some had committed extremely serious offenses and needed adequate punishment—prison life had to be a deterrent for them.
The situation is now completely different.
The repeated application of soul magic, psychic magic, and light magic can indeed gradually correct a criminal's mentality and then bring them back to the right path.
Except for a few criminals whose crimes are too severe to be included in this program, the rest are required to undergo this treatment, which is combined with penal labor reform.
A person must make sufficient amends for their own mistakes, and then they can obtain society's forgiveness and truly restore their mental health, otherwise the mental scars will persist.