Judge Derrick A. Grubb - Professional Background & Legal Expertise

Biography

Hon. Derrick A. Grubb is a judge for the Rock County Circuit Court in the Fifth Judicial District of Wisconsin. He was appointed to the bench by former Governor Scott Walker in 2018, filling the vacancy created by the retirement of the Hon. R. Alan Bates (Ret.).

Prior to his appointment, Grubb had maintained his own private practice, the Grubb Law Firm, S.C., since 1997. At the firm, he handled personal injury, civil litigation, and family law matters. In addition to his practice, Grubb was the general manager of Beloit Ford, Lincoln-Mercury, Inc. (2001 to 2003) and spent four years as an appointed Guardian ad Litem in Rock County.

He received a bachelor’s degree from Western Illinois University in 1988. Grubb went on to complete a J.D. at Marquette University Law School in 1991.

His memberships have included the Rock County Bar Association and the American Bar Association.

He was born in Berwyn, Illinois. At the time of his appointment, Grubb resided in Beloit, Wisconsin, with his wife, Debbie. The couple has four grown children.

Recent Cases by Hon. Derrick A. Grubb

State of Wisconsin vs. Mark Alan Younger

On May 2, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

May 02, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

Petitioner vs. Darius B Jones Sr

On May 2, 2024 a civil case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

May 02, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Civil

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Melissa S. McNulty

On May 2, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

May 02, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Christopher Lynn Smith

On April 25, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 25, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. James Allen Taylor

On April 25, 2024 a criminal traffic case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 25, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal Traffic

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

Colonial Savings, FA vs. Jeffrey S Fitzgerald et al

On April 24, 2024 a civil case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 24, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Civil

Practice Area

Property

Matter Type

Foreclosure

Case Last Refreshed

Apr 26, 2024

Carrington Mortgage Services, LLC vs. Estate of Lisa A. Newman et al

On April 22, 2024 a civil case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 22, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Civil

Practice Area

Property

Matter Type

Foreclosure

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Andre J. Rainey Jr.

On April 16, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 16, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

American Express National Bank c/o Zwicker & Associates, PC vs. Ryan Rydell

On April 12, 2024 a civil case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 12, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Civil

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Tailor Marie Laidig

On April 10, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 10, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Nikolas James Frer

On April 9, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 09, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Anthony Dewayne Fricks

On April 8, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 08, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Timothy Brandon Pollard

On April 5, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 05, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Antonio A. Ramos

On April 4, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 04, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Jesse Real-Miranda

On April 4, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 04, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Benjamin I. Parker

On April 3, 2024 a criminal traffic case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 03, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal Traffic

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Stephen Earl Eckhardt

On April 2, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 02, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Derek James Singkofer

On April 2, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 02, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

County of Rock vs. Jeremy Mccovins

On April 1, 2024 a traffic forfeiture case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 01, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Traffic Forfeiture

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

Janesville, City of vs. Tracy Aileen Slatter

On April 1, 2024 a non-traffic ordinance violation case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 01, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

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Category

Non-Traffic Ordinance Violation

Case Last Refreshed

May 03, 2024

Beloit, City of vs. Matthew Walter Conklin II

On April 1, 2024 a traffic forfeiture case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Apr 01, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Traffic Forfeiture

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Joe D. Jacobson

On March 28, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Mar 28, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Apr 26, 2024

State of Wisconsin vs. Karol Jean Landgren

On March 28, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Mar 28, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

State of Wisconsin vs. Brett R. Wiedmer

On March 22, 2024 a criminal case was filed in the jurisdiction of Rock County. Judge Grubb, Derrick A. presiding.

Filed

Mar 22, 2024

Status

Active

Judge

Hon. Grubb, Derrick A. 👉 Discover key insights by exploring more analytics for Grubb, Derrick A.

Court

Rock County

County

Rock County, WI

Case #

(Subscribe to View)

Category

Criminal

Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

May 03, 2024

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About

Derrick A. Grubb
Current Appointment Rock County Circuit Court, Department Branch 2, Floor 3R, Courtroom F	Rock County Circuit Court, Department Branch 2, Floor 3R, Courtroom F
Education Bachelor's degree, Western Illinois University - 1988 J.D., Marquette University Law School - 1991	Bachelor's degree, Western Illinois University - 1988 J.D., Marquette University Law School - 1991

Court Info

Court Info
Current Court:	WI - Rock County Circuit Court
Clerk phone:	+1 (608) 743-2254
Court Reporter:	+1 (608) 743-2257

Career History

Career History
Role	Employer	Where
Sole Practitioner	Grubb Law Firm, S.C.	Rock County, Wisconsin
General Manager	Beloit Ford, Lincoln-Mercury, Inc.	Rock County, Wisconsin
Judge	Rock County Circuit Court	Rock County, Wisconsin