Dan Polatsek concentrates his practice in corporate litigation, white collar criminal defense and internal investigations. His clients span several different industries including financial services, insurance, banking, health care and commercial lending.

With respect to corporate litigation, Dan has represented corporations and senior executives against claims of fraud, Racketeer Influenced and Corrupt Organizations Act (RICO), breach of contract, breach of fiduciary duty, fraudulent transfer and defamation. His representative matters include two multimillion-dollar civil RICO trials on behalf of a nationally recognized research and development company, a multimillion-dollar fraud trial on behalf of a private equity broker, and the defense of the single-largest shareholder in an alleged multibillion-dollar fraudulent transfer action.

With respect to white collar criminal defense matters, Dan has represented large companies, corporate executives, attorneys and other individuals against charges of mail and wire fraud, tax fraud, mortgage fraud, and violations of the Food, Drug, and Cosmetic Act, in addition to other complex crimes. He also regularly represents uncharged companies and individuals through the grand jury investigation process. In addition, Dan conducts internal investigations on behalf of corporate clients on issues including but not limited to conflict of interest schemes, breaches of fiduciary duty and other types of corporate malfeasance.

Dan is frequently a featured speaker and author on conducting internal investigations, preservation of the attorney-client privilege and issues involving electronic discovery. Prior to joining Katten, he served as the judicial law clerk to Justice McBride of the Illinois Court of Appeals for the First District.

Additionally, Dan takes an active role in representing clients in a variety of pro bono matters ranging from felony criminal cases to cases under the Fair Housing Act, such as United States of America and Elie Bitton, et al. v. Peter Altmayer, Case No. 05 C 1239 (N.D. Ill. 2005), in which he counseled the plaintiff in a case of first impression asserting violations under the Fair Housing Act for a neighbor's discriminatory conduct.