Mental Health or Substance Use Policy Implementation- Preferably around US homeless or incarcerated

You are asked to identify a mental health or substance use intervention that has been implemented in the public behavioral health sector, provide evidence from the epidemiological literature supporting the clinical/theoretical framework and outcomes (and/or, if available, financial costs and cost offsets regarding the delivery of the evidenced based intervention), describe the clinical and/or financial challenges and successes of implementation of that intervention, and describe how potential changes in the U.S. healthcare policy and financing may potentially impact the future delivery of the intervention. Papers that are turned in late will be deducted 10% per each day after the due date. This paper should be no more than 2,000 words (double-spaced, 1 margins; the word count does not include references).