Cease‑and‑desist vs Court Injunction in the Czech Republic: When to Send a Warning, and When to Seek Injunctive Relief

Last reviewed: July 20, 2026, reflects 2025–26 competition‑enforcement reforms.

When a competitor copies your branding, a distributor floods the market with counterfeit goods, or a rival launches a misleading advertising campaign, you face a concrete, time‑sensitive choice: send a cease‑and‑desist letter demanding that the conduct stop, or go straight to court for a preliminary injunction that compels it to stop. Understanding the stakes of cease‑and‑desist vs injunction in the Czech Republic is critical because each path carries different costs, timelines, evidence thresholds, and enforceability profiles, and picking the wrong one can mean lost customers, destroyed evidence, or unnecessary legal spend. The 2025–26 reforms to Czech competition enforcement have raised the practical cost of delay, making the choice even more consequential for rights‑holders operating in the Czech market today.

The short answer: send a warning letter when harm is small and reversible and you want a low‑cost first step. Seek an immediate court injunction when the damage is ongoing, irreparable, or the other side has already shown it will not comply. The decision framework later in this guide sets out exact trigger conditions for each route. Rights‑holders seeking competition law guidance or looking to find a competition lawyer in the Czech Republic can use the dimension‑by‑dimension analysis and the decision checklist below to prepare before instructing counsel.

Option A: The Cease‑and‑Desist Letter (Warning Letter)

A cease‑and‑desist letter, known in Czech practice as a výzva k zanechání nekalosoutěžního jednání or simply a warning letter, is a formal written demand that the recipient stop specific conduct alleged to constitute unfair competition under § 2976–2990 of Act No. 89/2012 Coll. (the Czech Civil Code). It is not a court order. It carries no independent coercive force. Its value lies in creating a paper trail, putting the defendant on formal notice, and opening a door to voluntary compliance or negotiated settlement before litigation costs escalate.

What a Cease‑and‑Desist Letter Achieves

• Immediate notice. The letter identifies the infringing conduct, cites the relevant statutory provisions, and sets a deadline, typically 7 to 14 days, for the recipient to cease and confirm compliance.
• Evidence of good faith. Czech courts view a prior warning favourably. A claimant who can demonstrate a reasonable attempt to resolve the dispute before suing is in a stronger procedural position, particularly on costs.
• Relationship preservation. Where the parties have an ongoing commercial relationship (supplier, franchisee, distributor), a letter allows the dispute to be addressed privately before public court filings.
• Cost efficiency. Drafting and sending a letter is significantly cheaper than filing an injunction application. For an unfair competition cease and desist situation where the harm is moderate, a letter is often the proportionate first step.

Risks of Relying on a Letter

• No enforcement power. A cease‑and‑desist letter is not enforceable. If the recipient ignores it, the sender must still go to court, having lost days or weeks in the process.
• Evidence destruction. A letter tips off the infringer, creating a window to destroy digital evidence, remove listings, or restructure operations to obscure the violation.
• Delay in a reform environment. Under the 2025–26 competition‑enforcement reforms, the Office for the Protection of Competition (ÚOHS) has broader enforcement tools and structural remedy powers. Conduct that continues while a letter is pending may attract regulatory scrutiny that could have been forestalled by earlier court action.

Drafting Pitfalls in the Czech Context

• Incorrect statutory references. Citing the wrong section of the Civil Code or confusing unfair‑competition provisions (§ 2976–2990) with public antitrust rules (Act No. 143/2001 Coll.) undermines credibility and may expose the sender to a counter‑claim for unjustified interference.
• Overly aggressive threats. Threatening criminal prosecution without a genuine legal basis, or threatening to contact the defendant’s customers, can itself constitute unfair competitive behaviour and expose the sender to liability.
• Vague demands. A letter that does not specify the exact conduct to stop, the deadline, and the consequences of non‑compliance is functionally useless, it cannot form the foundation for a subsequent injunction application.

Option B: Court Injunction (Preliminary Injunction in the Czech Republic)

A preliminary injunction (předběžné opatření) is a binding court order issued before or during the main proceedings that compels the defendant to do, or refrain from doing, a specified act. In unfair‑competition disputes, this typically means ordering the defendant to stop sales, remove infringing advertising, or preserve evidence. The statutory basis is found in Act No. 99/1963 Coll. (the Code of Civil Procedure). Unlike a warning letter, a preliminary injunction in the Czech Republic carries immediate coercive force: non‑compliance can be enforced through execution proceedings.

When an Injunction Is Available

Czech courts will grant a preliminary injunction when the applicant demonstrates three things:

• Prima facie rights. The applicant must show a plausible claim, for example, that the defendant’s conduct satisfies the general clause of § 2976 of the Civil Code (conduct in economic competition that is contrary to honest practices and capable of causing harm).
• Urgency / risk of irreparable harm. The applicant must establish that waiting for a full trial would result in harm that cannot be adequately compensated by damages alone, loss of customers, dilution of brand equity, or destruction of evidence.
• Proportionality. The relief sought must be proportionate; the court balances the harm to the applicant against the burden the injunction places on the defendant.

Procedure and Timing

The application is filed with the competent regional or district court. Under the Code of Civil Procedure, the court is required to decide on a preliminary injunction without undue delay. In practice, industry observers report that Czech courts frequently decide preliminary injunction motions within approximately seven days in intellectual‑property and unfair‑competition contexts, significantly faster than the main action, which can take months or years.

Czech courts also have the power to grant preliminary injunctions ex parte (without notifying the defendant) where exceptional urgency exists, for instance, where advance notice would enable the defendant to destroy evidence or complete a time‑limited market distortion. The applicant must demonstrate that even the short delay caused by notifying the other party would defeat the purpose of the measure.

Practical Evidence Standard

To win emergency relief, rights‑holders should file an evidentiary bundle that includes:

• Timestamped screenshots of infringing advertisements, listings, or packaging.
• Sales data or customer complaints demonstrating ongoing commercial harm.
• Trademark registration certificates or other proof of the right being infringed.
• Correspondence showing the defendant was previously notified (if a warning letter was sent first) and failed to comply.
• An affidavit or declaration setting out the urgency and the irreparable nature of the harm.

Security Deposit (Jistota) and the Risk of Adverse Damages

Under the Code of Civil Procedure, courts may require the applicant to provide a security deposit (jistota) when ordering a preliminary injunction. The deposit protects the defendant: if the injunction is later found to have been wrongly granted, the defendant can claim damages from the deposited sum. Rights‑holders must factor this financial exposure into the decision to seek injunctive relief. The court fee for filing a motion for a preliminary injunction is set by Act No. 549/1991 Coll. (the Court Fees Act); in practice, this has been applied at CZK 1,000 per motion (last verified July 20, 2026). The security deposit, where required, is a separate and potentially larger sum determined by the court on a case‑by‑case basis.

Should I Send a Cease‑and‑Desist Letter or Apply for an Injunction in the Czech Republic?

The table below provides a dimension‑by‑dimension comparison of cease‑and‑desist vs injunction in the Czech Republic, covering the factors that matter most when choosing an enforcement route.

The fastest path to stopping harmful conduct is usually a court injunction, when the applicant has evidence of urgency and can meet the filing requirements. A cease‑and‑desist letter remains the appropriate starting point where the harm is reversible, the commercial relationship matters, and the sender is prepared to escalate if compliance does not follow within the stated deadline.

Dimension‑by‑Dimension Analysis: Cease‑and‑Desist vs Injunction in the Czech Republic

Cost: Court Fees, Lawyer Fees, and the Security Deposit

Cost is often the first consideration. The table below sets out the direct financial exposure for each route.

The low entry cost of a warning letter makes it attractive for disputes where success through voluntary compliance is realistic. Where the dispute is high‑value or the risk of non‑compliance is clear, the higher upfront cost of injunctive relief is justified by the immediate, enforceable result.

Timing: How Fast Can Each Route Deliver Results?

A cease‑and‑desist letter can be drafted and sent within one to two business days. Compliance, however, depends entirely on the recipient. The standard cure period is 7–14 days. If the recipient ignores the letter, the sender must then prepare and file a court action, adding weeks or months to the timeline.

A preliminary injunction application, by contrast, triggers a statutory obligation on the court to decide without undue delay. Czech courts have demonstrated the ability to issue decisions on preliminary injunctions within approximately seven days in IP and unfair‑competition matters. Ex parte relief, where granted, can be even faster.

Liability and Regulatory Risk

The 2025–26 enforcement reforms expand ÚOHS powers, including stronger structural remedies and, in certain situations, individual liability. Conduct that continues while a letter is pending can crystallise regulatory exposure for the rights‑holder’s own market position (if the infringement distorts competitive dynamics in a way that implicates public competition law) or expose the rights‑holder to criticism for delay. Where regulatory escalation is a real possibility, earlier injunctive steps reduce the window of ongoing harm and signal proactive enforcement to regulators.

Czech Injunction Enforceability and Available Remedies

A court‑ordered preliminary injunction is directly enforceable. Courts can order the defendant to cease specific conduct (prohibition), preserve documents or goods (preservation), or surrender infringing products. Non‑compliance exposes the defendant to execution proceedings, including fines. This enforceability profile is the single largest advantage the injunction route holds over a cease‑and‑desist letter, which, regardless of how precisely drafted, remains a request that the recipient can choose to ignore.

Evidence Burden and Best Exhibits

• For a letter: attach copies of trademark registrations, screenshots with timestamps, and a concise description of the infringing conduct. The purpose is to demonstrate seriousness and good faith, not to meet a courtroom evidentiary standard.
• For an injunction: prepare a formal evidentiary bundle: timestamped screenshots, sales data, customer declarations, supply‑chain documentation, and a sworn statement on urgency. The court will weigh this evidence against the defendant’s interests, so completeness and credibility matter.

Cross‑Border and Online Seller Considerations

When the infringer operates from outside the Czech Republic or sells through online marketplaces, a warning letter to the seller alone may be ineffective. Platform takedown requests can supplement a letter, but they lack binding legal force and are subject to the platform’s own processes. A Czech court injunction, on the other hand, can be served on the marketplace’s Czech or EU entity and carries direct enforcement consequences. For cross‑border sellers, rights‑holders should combine injunctive relief with platform notifications and, where applicable, customs‑seizure applications to close multiple enforcement channels simultaneously.

What Changes in 2026: The Czech Competition‑Enforcement Reform

The 2025–26 amendments to the Czech competition‑enforcement framework, reflected in updates to Act No. 143/2001 Coll. (the Competition Act) and related procedural instruments, have expanded ÚOHS enforcement powers in ways that directly affect the cease‑and‑desist vs injunction calculus:

• Broader structural remedies. ÚOHS can now impose structural changes on undertakings, not just behavioural orders, making the consequences of ongoing infringement more severe.
• Stronger individual liability. In certain unfair‑competition and anticompetitive‑conduct cases, personal liability exposure for directors and officers has increased, raising the stakes for corporate decision‑makers who delay enforcement action.
• Faster investigative timelines. Industry observers expect ÚOHS to use its expanded toolkit more proactively, shortening the gap between complaint and investigation.

The practical effect: rights‑holders who tolerate ongoing unfair‑competitive conduct, whether out of caution or cost‑sensitivity, face a higher risk that the conduct triggers a formal ÚOHS investigation. In such cases, having already obtained a court injunction demonstrates proactive enforcement, while a still‑pending warning letter may suggest passivity. Where the conduct risks crossing from private unfair competition into public antitrust territory, the case for early injunctive relief is now stronger than it was before the reforms.

Decision Framework: When to Choose a Cease‑and‑Desist Letter vs When to Seek an Injunction

Use this framework to match your situation to the right enforcement route. The table maps priorities to actions; the bullet lists below provide specific trigger conditions.

Choose a Cease‑and‑Desist letter when:

• The harm is small, reversible, or likely to be resolved by voluntary compliance.
• You want to preserve a business relationship or explore settlement before litigation.
• You need a low‑cost first step and can monitor the recipient’s behaviour within the cure period.
• There is no immediate risk of evidence destruction or market distortion.

Choose a Court Injunction when:

• The harm is ongoing and irreparable, loss of customers, unique product displacement, or large‑scale consumer deception.
• Evidence shows the defendant will not comply voluntarily or has a history of deceptive conduct.
• Delay increases regulatory risk (ÚOHS attention under the 2025–26 reforms) or compounds commercial losses.
• You have immediate evidence to support urgency and can meet the court fee and deposit obligations.
• The infringer is a cross‑border or online seller where a letter alone is unlikely to produce results.

Red flags that force immediate injunctive relief:

• The defendant is actively destroying evidence (removing listings, altering records).
• A prior warning letter was ignored or met with an escalation of the infringing conduct.
• The conduct involves counterfeit goods entering the supply chain in significant volumes.
• The infringement risks triggering an ÚOHS investigation that could have broader consequences for your market position.

When, and Why, to Engage a Lawyer for the Cease‑and‑Desist vs Injunction Decision

Not every unfair‑competition dispute requires immediate legal representation. But certain situations demand it. You should hire a competition lawyer in the Czech Republic when:

• Monetary loss is escalating. If the conduct is generating measurable revenue loss or market‑share erosion, professional advice ensures the enforcement route matches the scale of the harm.
• Brand reputation is at stake. Misleading advertising or counterfeiting that threatens your brand’s market position warrants an injunction, and the evidentiary bundle required for one is best prepared by experienced counsel.
• The infringer is cross‑border or operates through online platforms. Jurisdictional complexity, service‑of‑process requirements, and platform‑specific takedown procedures all favour professional representation.
• There is a risk of evidence destruction. A lawyer can prepare an ex parte injunction application rapidly, preserving evidence before the defendant is alerted.
• The dispute may attract ÚOHS attention. Where conduct straddles private unfair competition and public antitrust law, the regulatory dimension requires specialist guidance.

Documents to gather before instructing counsel:

• Timestamped screenshots of infringing conduct (advertisements, listings, packaging).
• Sales data showing revenue impact or customer loss.
• Trademark registration certificates and prior licensing agreements.
• All prior correspondence with the infringer (including any earlier warnings).
• Supplier lists and chain‑of‑custody documentation for physical goods.
• Any internal reports or consumer complaints related to the infringement.

Having these materials ready when you contact a competition law specialist accelerates the assessment and reduces billable hours spent on document gathering.

Conclusion

The choice between a cease‑and‑desist letter and a court injunction in the Czech Republic is not abstract, it is a real‑time enforcement decision with measurable consequences for cost, speed, enforceability, and regulatory exposure. In the current environment shaped by the 2025–26 competition‑enforcement reforms, the cost of delay has increased. Rights‑holders who tolerate ongoing unfair competition while waiting for voluntary compliance face compounding commercial harm and heightened regulatory risk.

Use the decision framework and comparison table in this guide to identify the right route for your specific situation. Where the harm is small and reversible, a well‑drafted warning letter remains a proportionate and cost‑effective first step. Where the harm is ongoing, irreversible, or the defendant is unlikely to comply, an immediate application for injunctive relief is the defensible, and often necessary, choice. In either case, preparing the right evidence and engaging qualified counsel early will determine the outcome.

Sources

1. Office for the Protection of Competition (ÚOHS), Legislation & Guidance
2. Act No. 99/1963 Coll., Code of Civil Procedure, e‑Sbírka
3. Act No. 549/1991 Coll., Court Fees Act, e‑Sbírka
4. Czech Civil Code (Act No. 89/2012 Coll.), Unfair Competition Provisions §§ 2976–2990 (English Translation, Industrial Property Office)
5. Supreme Administrative Court of the Czech Republic, Decision Database
6. Masaryk University, Unfair Competition Law in the EU and in the Czech Republic