Litigation, Disputes & Special Situations

Global Cartel Defense

Coordinated defense when one course of conduct draws investigations on several continents. Price-fixing, bid-rigging, and market-allocation matters before the DOJ Antitrust Division and competition authorities abroad are run to a single strategy.

A guilty plea to a Sherman Act count is prima facie evidence of the violation in every private damages case to follow; a plea of no contest is not. Leniency from the Antitrust Division goes to the first company through the door and to no one else, and the European Commission and the UK CMA each run a separate race on their own terms.

Private plaintiffs recover treble damages, co-conspirators are jointly and severally liable with no right of contribution, and the four-year limitations period is tolled for the life of the government's case and a year beyond. A leniency applicant that cooperates with the plaintiffs is de-trebled and answers only for its own sales.

We act for companies and for the executives exposed with them, whose interests part once cooperation is on the table. Abroad we coordinate locally admitted competition counsel, not least because EU law gives no privilege to in-house lawyers, and one partner holds the chronology every forum is told. What we describe here is a capability and an approach rather than a record of particular outcomes; every cartel matter turns on its own facts.

What we do

Cartel-defense capabilities, from the first contact with an enforcer through parallel proceedings and the civil cases that follow.
01

Criminal Antitrust Defense

Representation in criminal cartel matters before the DOJ Antitrust Division, covering price-fixing, bid-rigging, and market-allocation allegations against companies and the individuals exposed alongside them.

02

Leniency & Amnesty Strategy

Assessing and, where it serves the client, pursuing leniency or amnesty, which means weighing the value of a marker, the timing across regimes, and the trade-offs that come with cooperating to reduce exposure.

03

Multi-Jurisdictional Coordination

Holding one strategy across parallel investigations and coordinating with locally admitted competition counsel abroad so positions before the European Commission, the UK CMA, and other authorities stay aligned.

04

Dawn Raids & Second Requests

Rapid-response support for unannounced inspections, subpoenas, and second requests, with document-preservation protocols, privilege protection, and a disciplined posture from the first hour of an inquiry.

05

Follow-On Civil & Class Litigation

Defense of the private treble-damages and class actions that trail a cartel investigation, sequenced so that a position taken on the criminal track does not become an admission on the civil one.

06

Compliance, Audits & Internal Review

Antitrust compliance programs, internal investigations, and risk audits that surface exposure before an authority does and build the record that supports a credible defense if conduct is questioned.

What you should know

The realities that shape a global cartel defense.
01

The plea becomes the plaintiffs' exhibit

A final judgment in a government antitrust case, a conviction on a guilty plea included, is prima facie evidence of the violation in later private suits; a consent decree entered before testimony or a plea of no contest is not. How the criminal case ends is therefore the opening move in the civil one.

02

One leniency, one door

The Antitrust Division grants leniency to the first company to report and cooperate, and to no one after it; a marker holds the place briefly while the application is completed. The applicant must show it reported promptly on discovering the conduct, and its civil exposure then drops to single damages on its own sales.

03

What an inspection can cost on its own

In the European Union a broken seal or a misleading answer during an inspection is its own infringement, fined at up to one percent of worldwide turnover; the cartel fine itself may reach ten percent. In the United States, destroying documents in contemplation of a federal investigation is a felony carrying up to twenty years.

04

The individuals are exposed in their own right

A Sherman Act conviction carries up to ten years' imprisonment for an individual, and corporate leniency shields officers and employees only if they cooperate too. The UK cartel offence is personal: up to five years' imprisonment, and director disqualification of up to fifteen. Whether an executive needs separate counsel is settled in the first week.

05

The civil clock stops while the government works

Private claims must be brought within four years, but the period is suspended while a government case on the same conduct is pending and for a year after, so the follow-on suits arrive with the plea in hand. Indirect purchasers are barred under federal law and welcomed by many states, multiplying the dockets.

06

Privilege does not cross the Atlantic intact

EU law gives no privilege to communications with in-house counsel, and advice from a lawyer not admitted in a member state may be unprotected in a Commission inspection too, so a memorandum privileged in Chicago can be seized in Brussels. We coordinate locally admitted competition counsel in each jurisdiction and route sensitive analysis accordingly.

The arc of a mandate

How this work runs

One agreement alleged, five authorities, a single defense.
  1. Stage 01

    The knock

    Inspectors arrive in Brussels while a grand-jury subpoena lands in Chicago. Within hours we stand up litigation holds, seal privileged material at each site, brief custodians on their rights, and open one matter file for what will become many proceedings.

  2. Stage 02

    The leniency clock

    Before positions harden, we map the client's exposure against every regime in play and decide once, for every forum, whether to race for a marker. If cooperation is the path, applications are sequenced so a proffer to one authority never surfaces as an admission before another.

  3. Stage 03

    Parallel-track management

    DOJ criminal process, European Commission and CMA inquiries, and the first follow-on complaints now run on different clocks. One partner holds the master chronology, aligns privilege and document positions across locally admitted counsel, and dictates the order in which anything is said anywhere.

  4. Stage 04

    Resolution in sequence

    Whether by plea, settlement, or trial, each forum resolves in a deliberate order, because a fine accepted in one becomes the anchor for treble-damages plaintiffs in the next. The matter closes only when the last civil class is resolved and the compliance record is rebuilt.

A cartel case is one story told in five forums, and the defense fails the moment it stops being one story.

3×
treble damages available to private antitrust plaintiffs

Frequently asked

Common questions on global cartel defense.
What is a cartel investigation?

A cartel investigation is an inquiry by a competition authority into suspected agreements among competitors that restrain trade, such as price-fixing, bid-rigging, output limitation, or market and customer allocation. In the United States these matters are pursued criminally by the DOJ Antitrust Division and civilly by private claimants, and parallel inquiries by authorities abroad frequently follow, so a single course of conduct can generate exposure on several continents at once.

Does Hart David Carson LLP handle cartel matters outside the United States?

Yes, through the structure the work requires. Cartel conduct rarely stops at a border, and a Department of Justice investigation commonly runs alongside inquiries by the European Commission, the UK Competition and Markets Authority and authorities elsewhere. Our London and Dubai offices operate through partner firms, and competition proceedings in the European Union and the United Kingdom require locally admitted counsel in any event, so we hold the overall strategy from Chicago and coordinate locally admitted competition counsel in each jurisdiction, with one chronology, one privilege protocol and one sequence for what is said where. What we describe is a capability and an approach rather than a record of particular outcomes.

What is leniency and how does it work in a cartel case?

Leniency, or amnesty, is a program under which the first cartel participant to self-report and cooperate may receive reduced penalties or, in some regimes, avoid prosecution altogether. The calculus is unforgiving. Leniency in one jurisdiction does not bind another, timing is decisive, and a marker sought too early or too late can forfeit the benefit. We assess the option early and, where it is pursued, coordinate applications across the authorities involved.

What is the difference between criminal and civil cartel exposure?

Criminal exposure in the United States is the province of the DOJ Antitrust Division, which can pursue companies and individuals for conduct such as price-fixing and bid-rigging. Civil exposure comes from private plaintiffs and class actions seeking treble damages under the antitrust laws, and often follows the criminal matter. The two proceed on different tracks with different stakes, and a defense has to account for both at once so a concession on one front does not become an admission on the other.

How do you manage parallel proceedings in several countries?

With a single chronology and a single order of disclosure. The master chronology of what the company knew, did and said is built once, from the documents preserved in the first hours, and every submission in every forum is checked against it before it goes out. Privilege is mapped jurisdiction by jurisdiction, because EU proceedings give no protection to in-house legal advice and U.S. work product may not travel either, so sensitive analysis is routed to the lawyers whose privilege will hold where the paper sits. Cooperation is sequenced so that a proffer to one authority never surfaces as an admission before another, and the production of European personal data into U.S. discovery is cleared under the data-protection rules that restrict it. One partner decides the order in which anything is said anywhere, and the locally admitted counsel we coordinate carry that order into their own proceedings.

Can you represent both companies and individuals in a cartel matter?

Cartel investigations frequently expose the company and its executives at the same time, and their interests can diverge as cooperation decisions are made. We assess potential conflicts at the outset and structure the representation accordingly, advising the company and seeing that individuals who need separate counsel obtain it, so that the defense is sound and the privilege is protected.

Related

Adjacent antitrust, enforcement, and dispute practices.

Antitrust Litigation & Enforcement

The broader antitrust practice within which cartel defense sits, covering merger review, monopolization claims, and competition counseling.

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White-Collar & Investigations

Defense in criminal and regulatory investigations, internal reviews, and government inquiries where companies and executives are exposed together.

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Class Action Defense

Representation in the follow-on class and treble-damages litigation that so often trails a cartel investigation.

Explore →

Commercial Litigation

Trial advocacy for complex business disputes in state and federal courts, from early case assessment through judgment and appeal.

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Reviewed by Jonathan D. Herpy, Sr., Senior Partner · Last updated October 2026 · Educational overview · Not legal advice

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Facing investigations on more than one continent? Coordinate the defense early.

One partner is accountable for the whole matter, and you have that partner's direct line. Chicago, London, and Dubai work to the same standard.