Auction & Tender Bid-Rigging Lawyers

The crime of price manipulation in public auctions and tenders punishes conduct aimed at rigging the competitive mechanism in public tenders, contests and auctions. Regulated in Article 262 of the Criminal Code (CP), it protects the principle of free competition and the integrity of award procedures. It has become particularly relevant in public procurement, where collusive practices (bid rigging) cause multi-million losses to the public purse.

You have been reported over an agreement at a public auction: what it means and what happens next

What is punished is not participating in an auction, nor doing so alongside other bidders, but altering the price by means of an agreement, a threat or a deceit that distorts the free formation of the bid. The line between a lawful joint bid and an unlawful concerted arrangement is precisely the ground on which these cases are decided, and it is drawn from documents and communications rather than from the outcome of the auction.

What to do (and what not to do) before making a statement

• Do not make a statement without a lawyer of your own choosing. Articles 118 and 520 of the Criminal Procedure Act (LECrim) give you the right to remain silent, not to incriminate yourself and to speak with your lawyer in private before the statement. What is said in the first appearance conditions the whole case.
• Keep the documentary trail of the operation: the terms of the auction, the funding of the bid, any joint-venture arrangement and the communications with the other bidders. A documented lawful arrangement is a defence.
• Do not contact the complainant, the witnesses or the officers to explain or resolve it. Those conversations end up in the case file and are read as pressure on the evidence.
• Do not delete messages, files or records. Deletion is read as an indication of guilt and, in a forensic image, it is almost always recoverable.

Typical Conduct

Art. 262 CP punishes those who solicit gifts or promises in exchange for not taking part in a public tender or auction, those who try to drive bidders away through threats, gifts, promises or any other artifice, those who collude to alter the auction price, and those who fraudulently break up or abandon the auction after winning it. The most common forms include: an agreement between bidders to fix prices or share out lots; bid suppression (withdrawing so that a pre-agreed competitor wins); bid rotation (each cartel member wins in turn); the submission of cover bids (fictitious offers that create the appearance of competition); and compensatory subcontracting to the agreed loser.

Penalties & Sanctions

The basic offence carries prison of 1 to 3 years and a fine of 12 to 24 months, together with special disqualification from bidding in judicial auctions for 3 to 5 years. Where the tender or auction is called by a public administration or public body, the agent and the person or company they represent also receive special disqualification from contracting with public administrations for 3 to 5 years. Beyond the criminal penalties, the CNMC (National Commission on Markets and Competition) may impose administrative fines of up to 10% of the company's annual turnover for the same anti-competitive practice.

Bid Rigging in Public Procurement

Rigging public tenders is the most damaging form because of its impact on public spending. Colluding firms artificially raise prices, generating a significant overcost for public authorities. The sectors most exposed in practice are construction and infrastructure (roads, hospitals, schools), healthcare supplies, municipal cleaning and maintenance services, public transport and IT services, where repeat tenders make coordination easier to sustain.

Detection & Red Flags

Competition authorities and central purchasing bodies use statistical indicators to detect collusion: suspicious rotation patterns (the same firm always wins in a given area); identical or near-identical prices across bids; common errors in documentation that suggest joint drafting; cross-subcontracting between competitors; the systematic withdrawal of a habitual bidder; and the absence of competitive variability in markets that ought to be dynamic.

Leniency & Cooperation

The leniency programme allows the first cartel member to report the practice to obtain full immunity or a significant reduction of the sanction. This mechanism is administered by the CNMC in the administrative sphere. In the criminal sphere, since Organic Law 14/2022 Art. 262.3 CP exempts from criminal liability directors and staff who end their involvement and cooperate fully with the authorities, provided that the company or they applied for immunity from the fine under the Competition Act before learning that they were under investigation and also cooperate with the court or the public prosecutor; outside that case, confessing before knowing that proceedings are directed against oneself mitigates the penalty (Art. 21.4 CP). A large share of detected cartels come to light through leniency applications, which makes the timing of any cooperation a key strategic decision.

Economic Harm & Civil Liability

The harmed authorities may claim compensation for the overcost caused by the collusion. Directive 2014/104/EU facilitates damages actions for anti-competitive practices, creating a presumption that cartels cause harm and establishing the joint and several liability of their members. Final CNMC decisions finding an infringement are irrefutable in the damages action before the civil court (Art. 75.1 of the Competition Act), which is why the criminal and administrative strands must be defended in a coordinated way.

Defence Strategies

The defence may be built by showing: the absence of any agreement (similar bids resulting from market knowledge rather than collusion); independent decision-making (the firm prepared its bid autonomously); the lack of any contact with other bidders; that the firm was the victim of pressure from a dominant operator; or that the conduct did not actually affect the free competition of the procedure. We act before the Investigation Sections of the Courts of Instance (Sección de Instrucción; formerly the Investigating Courts), the Criminal Sections of the Courts of Instance (Sección de lo Penal; formerly the Criminal Courts) and the Provincial Courts, coordinating the criminal defence with the proceedings before the CNMC.

Criminal Procedure Stages and the Competent Court

A prosecution for bid rigging in public auctions and tenders (Article 262 of the Spanish Criminal Code) begins with the opening of preliminary proceedings before the Investigation Section of the place where the auction or tender was held, or where the collusion between bidders took shape. During this phase the investigating judge gathers the documentation of the procurement file or auction procedure, takes statements from the persons under investigation and witnesses, and assesses the economic expert evidence. The subsequent trial is generally heard by the Criminal Section when the penalty does not exceed five years, which is the case under the basic penalty of this offence (one to three years of imprisonment).

The competent court should be identified according to the context of the case. Only where the price-fixing scheme produces, or may produce, a serious impact on the security of commercial dealings or on the national economy, or loss to a large number of people in the territory of more than one Audiencia, does jurisdiction lie with the Audiencia Nacional (Art. 65.1.º c) LOPJ). By contrast, collusion among bidders in a purely local judicial or notarial auction is handled before the ordinary territorial jurisdiction. Pinpointing the correct forum from the outset shapes deadlines, the nullities that can be raised, and the investigation strategy.

The proceedings normally follow the abbreviated track, given the penalty range. After the intermediate phase, in which the defence may request dismissal or refine the evidence, the trial opens. The defence intervenes at every milestone: proposing exculpatory enquiries during the investigation, challenging the prosecution's expert reports, and drafting the defence pleadings. Anticipating the procedural route makes it possible to prepare the documentary and expert evidence in good time, which in these offences is often decisive in establishing or ruling out a genuine alteration of the auction price.

Economic Expert Evidence and Documentary Proof

In Article 262 offences, the prosecution case rests on two pillars: proving the conduct (soliciting bribes, threats or collusion) and showing that this conduct altered, or was capable of altering, the auction price. The second element is rarely proved by direct testimony and normally requires an economic or accounting expert opinion comparing the price actually obtained with the market value of the asset or service tendered, while stripping out factors unrelated to the alleged manoeuvre. The methodological soundness of that report is often the real battleground of the trial.

The defence examines the file in detail: tender specifications, the minutes of the contracting committee or notary, the bids submitted, communications between bidders and the records of the auction itself. Where the value of the awarded asset is disputed, valuations and appraisal reports become relevant, as may data from public bodies such as the Spanish Patent and Trademark Office when the subject of the tender affects industrial property rights. Testing the documentary chain of custody and the internal consistency of the valuations can expose logical gaps or unverified assumptions.

Against the prosecution's expert evidence, a defence expert report is key, questioning the damage calculation method, the choice of comparables, the time horizon or the causal link between conduct and price. It is not enough to assert that an alteration occurred: the prosecution must quantify and explain it rigorously. The defence task is to expose the weaknesses in that quantification, offer reasonable alternative hypotheses about how the price was formed and, where appropriate, show that the variations stem from lawful market dynamics rather than from punishable collusion.

Limitation of the Offence and Calculating Time Limits

Limitation is governed by Article 131 of the Criminal Code and is one of the first issues the defence must analyse. The rule looks to the maximum penalty for the offence. The basic form of Article 262 provides for imprisonment of one to three years, a fine of twelve to twenty-four months, and special disqualification from bidding in judicial auctions for three to five years; where the tender or auction was convened by a public administration or body, an additional disqualification from contracting with public administrations applies for the same period. Because the maximum custodial penalty does not exceed five years, this is a less serious offence with a limitation period of five years. Under the current rules there is no intermediate three-year period applicable to this offence.

Time generally starts to run on the day the offence was completed. In cases of collusion between bidders, fixing the starting point requires identifying when the prohibited conduct was completed, which does not always coincide with the formal date of the auction. The period is interrupted when proceedings are effectively directed against the person under investigation, on the terms required by Article 132 itself; the mere announcement of generic actions is not enough to interrupt it. A precise analysis of those dates can prove decisive.

For practical purposes it is worth recalling the general scale in Article 131. If an offence carried a maximum custodial penalty exceeding five years, the period would rise to ten years; where the penal response is a fine classified as a minor offence, limitation operates after one year. In the case of Article 262, however, the applicable horizon is five years. Reconstructing the case timeline accurately makes it possible to assess whether the criminal action has lapsed before building the rest of the defence strategy.

Boundary with the Competition, Commercial and Civil Routes

The same conduct of sharing out or manipulating tenders can trigger two distinct and independent responses. The criminal response, under Article 262 of the Criminal Code, punishes soliciting bribes, threats or collusion aimed at altering the auction price. The administrative response, under competition law, pursues collusive practices and market sharing before the National Markets and Competition Commission, with its own sanctioning regime and leniency programme. These are separate channels that may coexist, so the defence must manage both fronts in a coordinated way.

The competition authority's leniency programme may remove the administrative fine for the first party to provide relevant information about the cartel, or reduce it for later ones, and since Organic Law 14/2022 it has a criminal counterpart: Art. 262.3 CP exempts directors and staff who cooperate, provided the immunity application was filed before they learned they were under investigation and they also cooperate with the court or the prosecutor. Outside that case, such cooperation does not, in itself, resolve the criminal proceedings, which have their own mechanisms and evidentiary requirements. Nor does the closure or sanction in the competition route predetermine the criminal outcome. A decision taken for the administrative file may therefore have unexpected consequences in the criminal proceedings if it is not assessed with an overall view.

Alongside these two planes, the consequences of a rigged tender extend to the commercial and civil order: nullity or voidability of the contract or award, claims for compensation by the injured party, and potential corporate liability of directors. The criminal defence cannot ignore these collateral effects, because statements and documents produced in one set of proceedings may be used in the others. An integrated strategy requires anticipating how the criminal, competition and commercial or civil routes interact, in order to avoid harmful contradictions.