My son was sent to DVI California for 18 months with 1/2 time. under the new laws prop 57 how does that affect him for non violent crime?

This will depend on his previous criminal history and his behavior while serving this sentence. The short sentence also is another component that is weighed in the decision-making process. If he gets to his counselor and continues to push the paperwork, he will have a better chance of attaining early release.