Medical cannabis access under probation and parole: Removing barriers to doctor-recommended treatmentPublished byreason.orgon •1 min readExecutive summary Nearly four million adults in the United States live under community supervision, either on probation or parole. That is nearly double the combined population of people held in jails and prisons nationwide.Criminal Justice ReformDrug PolicyMarijuana RegulationsMedical MarijuanaPPLearn moreShareLegalReport