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Hon. Robert Dierker

Areas of Expertise:
Administrative Law, Business Litigation, Civil Rights, Commercial, Constitutional Law, Construction, Consumer, Contracts, Employment, FELA, Insurance, Labor, Media Law, Personal Injury, Products Liability, Professional Liability / Malpractice, Toxic Torts
Mediator, Arbitrator
Hon. Robert Dierker photo
Robert H. Dierker was a circuit judge in the City of St. Louis (22nd Circuit) from 1986 to 2017, appointed by then Governor John Ashcroft. He holds his A.B. from St. Louis University, his J.D. from U.M.K.C., and his LL.M. from Harvard.

As a practicing attorney, he handled labor and employment law matters and important constitutional and policy cases, including cases on school desegregation, election and voting rights, constitutional limits on taxes, abortion, and civil rights. As a trial judge, he presided over numerous civil and criminal trials, including nine capital trials and actions relating to partial­birth abortion, religious liberty, and election contests. In 1990, he presided over a three-month Times Beach dioxin trial. He was Presiding Judge of his Circuit in 1997-98, and criminal assignment judge, supervising the St. Louis felony trial docket, in 1989 and 1991. He supervised the circuit's asbestos docket from 1993 to 2003. He has sat by designation on the Missouri Supreme Court and the Missouri Court of Appeals. Since leaving the bench at the end of 2017, he served as Chief Trial Assistant to the St. Louis Circuit Attorney, participating in the prosecution of then-Governor Eric Greitens, and thereafter as Deputy City Counselor for the City of St. Louis, handling complex state and federal litigation, including appellate litigation in the U.S. Supreme Court, the Missouri Supreme Court, and the federal and state appellate courts.

He is the author of two books on Missouri criminal law and procedure and co-author of books on Missouri tort and contracts law, all published by Thomson West as part of the Missouri Practice Series. He is married and has two stepsons and three daughters, and six grandchildren.


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