Businesses in a wide range of industries are under increased scrutiny and are subject to constantly evolving rules and restrictions. Clients turn to Armstrong Teasdale’s White-Collar Criminal Defense and Government Investigations lawyers when they find themselves the target of complex criminal and civil investigations brought by outside agencies or organizations.

We have broad experience representing clients, including companies and individuals, such as C-suite executives, municipal officials, government contractors, physicians and others, in the investigation and defense of high-profile, often contentious cases at both the state and federal levels. This includes significant experience handling government subpoenas, as well as jury trial experience in matters involving price fixing and other antitrust charges, health care, bank and securities fraud including money laundering, market manipulation, espionage, commercial lending, regulatory and criminal gambling violations, and tax evasion. In addition, our lawyers have assisted clients with matters involving violations of the Medicare/Medicaid Anti-Kickback Statute; environmental laws, including the Clean Water Act and Resource Conservation Recovery Act (RCRA); criminal bribery and extortion charges; the Racketeer Influenced and Corrupt Organizations Act (RICO); immigration and trade practice violations; Unfair, Deceptive and Abusive Practices (UDAPP); federal False Claims Act (FCA) and qui tam cases; and fraud investigations in the commercial lending, pharmaceutical, mining, education and aeronautics industries, to name a few. We provide counsel to clients regarding compliance with and possible violations of U.S. laws such as the Foreign Corrupt Practices Act (FCPA) and international anti-corruption conventions, including the OECD Anti-Bribery Convention, the U.N. Convention Against Corruption and the Inter-American Convention Against Corruption.

Our wide range of experience means we can address and defend what often are multifaceted criminal, civil and/or regulatory matters. We represent clients in high-profile parallel suits that can arise during criminal investigations involving civil fraud, securities matters, insider trading and enforcement actions, including those prosecuted by the Securities and Exchange Commission (SEC). Because our skilled team includes a former SEC enforcement lawyer, state securities officials and members of the U.S. Attorney’s Office across jurisdictions, we have a unique perspective and approach client matters with a rare familiarity.

Our white-collar criminal defense and government investigations lawyers, including former federal prosecutors, have also had significant success in persuading regulators to decline pursuing charges. We work closely with clients and prosecutors to resolve matters before charges are filed, which helps clients avoid criminal prosecution and the damaging consequences that follow.

In recent years especially, our lawyers have seen the number of qui tam cases brought under the federal FCA against corporate defendants more than double. The FCA, which allows private whistleblowers to sue companies on behalf of the government, contains drastic penalties resulting in annual total settlements and judgments in the billions of dollars. Engaging counsel to conduct an internal investigation before a disgruntled employee becomes a whistleblower may allow the company to entirely avoid a qui tam action.

Contact Us
  • Worldwide
  • Boston, MA
  • Chicago, IL
  • Denver, CO
  • Dublin, Ireland
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • London, England
  • Miami, FL
  • New York, NY
  • Orange County, CA
  • Philadelphia, PA
  • Princeton, NJ
  • Salt Lake City, UT
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
Worldwide
abstract image of world map
Boston, MA
800 Boylston St.
30th Floor
Boston, MA 02199
Google Maps
Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
Google Maps
Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
Google Maps
Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
Google Maps
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
Google Maps
Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
Google Maps
Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
Google Maps
Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
Google Maps
Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
Google Maps
Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
Google Maps
Photo of Miami, Florida
New York, NY
7 Times Square, 44th Floor
New York, NY 10036
Google Maps
New York City skyline
Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
Google Maps
Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
Google Maps
Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
Google Maps
Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
Google Maps
Salt Lake City, Utah
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
Google Maps
St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
Google Maps
Photo of Washington, D.C. with the Capitol in the foreground and Washington Monument in the background.
Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
Google Maps
Wilmington, Delaware