Marshals are regulated by DOI but, unlike the City Sheriff, they are not City employees. Marshals collect fees, which are set by statute, from the private litigants whose judgments they enforce, and they also retain five percent of any money they collect on judgments. Marshals must pay an annual assessment to the City consisting of $1,500 plus 4.5% of their gross income. Below are the marshals' annual revenue numbers dating back to 2010.