The sheriff of each county is required by state statute to attend the circuit courts. The deputies in the Court Services Division serve as bailiffs, provide security for 12 circuit courts and five court commissioners, transport prisoners to and from court, provide security for the Waukesha County Government Center, serve civil process and warrants, and assist the patrol division.

The Sheriff’s Department works with the county's department of administration and the circuit courts to develop and enhance security procedures for Waukesha County. An example of this cooperation is the security-screening station and controlled access program at the courthouse and administrative center.