About Eric

Eric S — Maciolek is a criminal defense attorney based in Sun Prairie, Wisconsin. He earned his Juris Doctor from DePaul University College of Law in 2007 and holds a Bachelor of Science in Biochemistry from the University of Wisconsin–Madison, completed in 2002. After passing the Wisconsin Bar Examination, Eric began his legal career in 2007 — He founded Maciolek Law Group in 2021, with offices in Green Bay and Sun Prairie. The firm focuses on criminal defense, representing clients in state and federal courts across Wisconsin.

Eric's practice encompasses many criminal cases, from misdemeanors to serious felonies. He has successfully defended clients in various charges, including drug offenses, OWI (Operating While Intoxicated), and violent crimes. His litigation experience includes trials and appeals, demonstrating his commitment to achieving favorable outcomes for his clients. In addition to his legal practice, Eric is actively involved in professional organizations.

He has served on the board of the Wisconsin Association of Criminal Defense Lawyers since 2010, contributing to the advancement of criminal defense practices in the state. He is also a member of the National Association of Criminal Defense Lawyers and NORML (National Organization for the Reform of Marijuana Laws), reflecting his dedication to criminal justice reform. Eric's commitment to his clients is evident in his approach to criminal defense. He treats all clients with respect and acknowledges the individual experiences and challenges they face.

This personalized representation has earned him a reputation as a dedicated and effective attorney in the Wisconsin legal community. For those seeking legal representation in criminal defense matters in Wisconsin, Eric S — Maciolek offers experienced and dedicated counsel through Maciolek Law Group.

Education

DePaul College of Law

J.D.

2007

University of Wisconsin - Madison

B.S. | Biochemistry

2002

Languages

English (Spoken, Written)

Experience

Lawyer

KO and Associates
2018

Lawyer

Wisconsin State Public Defender
2007

Student Lawyer

Federal Defender Program
2001

Accepted Jurisdictions

Federal Circuit
Wisconsin

Court Admissions

Wisconsin Court System State Trial Court · Admitted 2007
U.S. District Court for the Eastern District of Wisconsin U.S. District Court · Admitted 2007
U.S. District Court for the Western District of Wisconsin U.S. District Court · Admitted 2007
U.S. Court of Appeals for the Seventh Circuit U.S. Circuit Court · Admitted 2007

Types of Cases Handled

Criminal Defense

Legal Services Scope

Trials Appeals

Professional Associations

Wisconsin Association of Criminal Defense Lawyers

Board has membership 2012 - Current

National Association of Criminal Defense Lawyers

has membership 2007 - Current

Office Locations

Main Office

 750 Windsor St Suite 206 Sun Prairie WI 53590

Office 2

 336 S. Jefferson Street Green Bay WI 54301