This report was submitted to the Public Protection & Judiciary Committee (PP&J) of the Dane County Board of Supervisors from Judge Nicholas J. McNamara. The Dane County Board of Supervisors is the Legislative branch of the county government in Dane County, Wisconsin. One of the County Board’s working committees, the PP&J, focuses on legislation that addresses such matters as law enforcement, public safety, the County Jail and the Clerk of Courts. Dane County public officials and community members are presently in the process of considering significant and expensive renovations in the physical structures that comprise the Dane County Jail. In an effort to ensure that expenditures actually increase safety, improve humane treatment and reduce racial disparities, the Dane County Board and PP&J have added important amendments to the current budget that call for various studies and reviews of current systems and practices. This report is an effort to begin to respond to the County Board’s proposal by sharing several crucial data points as a foundation for understanding and improving criminal justice in Dane County.