I need a sample letter to a judge asking that my son be sentenced to mandatory rehab instead of incarceration for three for possession of cds. I was asked to write a letter to the court on why i believe that he should be allowed to go to rehab vice prison.I would like to hear some inputs on this. I am sending good thought that the judge hears you and does the right thing in ordering her into treatment. I am amazed at your strength and resolve. How the treatment plan and progress are regularly evaluated, including type and frequency of drug testing. Client's progress in treatment. This page includes all DCFS forms available online. Forms are available for view in either or both of the following formats. How the treatment plan and progress are regularly evaluated, including type and frequency of drug testing.