Studies have also found treatment to be cost-effective in reducing the costs of crime. For every dollar spent on treatment for this population, somewhere between three and seven dollars in savings is gained in crime-related cost savings, increased earnings, and reduced health care expenditures. A study conducted in California, for example, reported that treating offenders for $209 million saved taxpayers more than $1.5 billion 18 months later, with the largest savings due to reductions in crime. ^[1]  The study estimated that for every $1 spent on treatment, approximately $7 could be gained in future savings.