Mary Catherine Marubio is the presiding judge of the Pretrial Division for the Circuit Court of Cook County. The Pretrial Division was tasked with implementing the SAFE-T Act which ended the use of money as a condition of pretrial release in 2023.
Judge Marubio was appointed as an associate judge in 2016 and elected in 2020. She is a double demon and serves on the DePaul Alumni Judges Advisory Committee.
Judge Marubio serves on the Illinois Judicial Ethics Committee, a collaborative effort of the Illinois Judges Association, ISBA and CBA to answer any state judge's ethics questions, and to publish written Advisory Ethics Opinions. IJEC recently drafted and submitted an updated Proposed Code of Judicial Conduct to the Illinois Supreme Court, which went into effect January 1, 2023.
Judge Marubio has served as a board member of the Illinois Judges Association and Illinois Judges Foundation. Judge Marubio is an active member and past president of the Alliance of Illinois Judges, an LGBTQ+ and ally judges organization She holds active bar memberships with International Association of LGBTQ+ Judges, Alliance of Illinois Judges, Chicago Bar Association, North Suburban Bar Association, Decalogue Society of Lawyers, and LAGBAC Chicago's LGBTQ+ Bar Association.
Just prior to joining the bench she was an administrative law judge and the ethics officer for the Illinois Department of Financial and Professional Regulation after serving as a bureau prosecutions chief at IDFPR. For 15 years, Mary Cay was in private practice concentrating in state and federal criminal defense and consular law.
Judge Marubio is a frequent presenter on judicial ethics, pretrial best practices, and extradition law. She presents a course in diversity and LGBTQ inclusivity to Cook County Probation Officers.
In her free time, she is a birder, Nintendo enthusiast, and avid live music fan.