The penalties for fabrication of evidence run deep and stack fast. At the federal level, deliberately falsifying records tied to an investigation can bring up to 20 years in prison and a fine of up to $250,000 for an individual. State prosecutions add their own felony exposure. Civil courts can throw out an entire lawsuit, order the fabricating party to pay the other side’s legal fees, and reopen judgments years after they became final. Attorneys who participate lose their licenses. And someone harmed by fabricated evidence can sue the officials responsible under federal civil rights law.
What Fabrication of Evidence Means
Fabrication is the deliberate creation, alteration, or presentation of information you know is false, with the goal of misleading a court, jury, or investigator. Intent is the key ingredient. Submitting an incorrect document by accident is not fabrication. Doctoring a document so it supports your version of events is. The conduct covers manufacturing physical evidence, forging financial records or contracts, planting items at a scene, and creating false digital files such as altered photos or manipulated metadata.
It is not the same as hiding or destroying evidence, though both are also illegal. Concealment keeps a real fact from the other side. Fabrication invents a false reality for the court to consider. Federal regulations reach both kinds of conduct, prohibiting the alteration of records to impair their reliability and the creation of false records intended to mislead officials in proceedings or investigations.1eCFR. 25 CFR 11.440 – Tampering With or Fabricating Physical Evidence
Federal Criminal Penalties
The main federal statute is 18 U.S.C. § 1519, enacted as part of the Sarbanes-Oxley Act of 2002. It reaches anyone who falsifies, conceals, or makes a false entry in any record or tangible object with intent to obstruct a federal investigation or any matter within the jurisdiction of a federal agency. The maximum sentence is 20 years in prison, a fine, or both.2Office of the Law Revision Counsel. 18 USC 1519 – Destruction, Alteration, or Falsification of Records in Federal Investigations and Bankruptcy
One feature of Section 1519 surprises people: no formal investigation has to be underway. The statute applies to conduct “in relation to or contemplation of” a federal matter. Altering records because you anticipate an investigation is enough. That reach is broader than most state tampering laws, which typically require a pending or imminent proceeding.
A separate statute, 18 U.S.C. § 1001, targets false statements and fabricated documents submitted to any branch of the federal government. Making a materially false statement or using a forged document in a federal matter carries up to five years in prison, and up to eight years if the offense involves terrorism.3Office of the Law Revision Counsel. 18 USC 1001 – Statements or Entries Generally The statute carves out statements made by parties or their lawyers to a judge during a judicial proceeding, but that exception does not protect fabrication submitted during an investigation or to a federal agency.
When a federal statute says “fined under this title” without naming a dollar amount, the general federal sentencing provision fills the gap. For any felony conviction, the maximum fine for an individual is $250,000.4Office of the Law Revision Counsel. 18 USC 3571 – Sentence of Fine A conviction also produces a permanent federal felony record, with lasting consequences for employment, professional licensing, voting rights, and firearm ownership.
State Criminal Penalties
Every state criminalizes evidence tampering and fabrication, though labels and penalties vary. Most states treat the offense as a felony when the fabricated evidence relates to a serious crime and as a misdemeanor when tied to less serious matters. Prison sentences at the state level generally range from roughly two to ten years for felony charges, with fines that vary by jurisdiction. Some states escalate penalties when the fabrication leads to someone being wrongfully charged with or convicted of a violent offense.
Classification carries practical weight. A felony conviction in any state triggers the same cascading consequences as a federal one. Even a misdemeanor evidence-tampering conviction signals dishonesty, which can be devastating for anyone working in law, finance, healthcare, or law enforcement.
Related Charges Often Stacked Alongside
Fabrication rarely travels alone. Prosecutors frequently pair it with other offenses arising from the same conduct.
Perjury
Perjury is lying under oath about a material fact. Fabricate a document and then testify under oath that it is genuine, and you have committed both crimes. Federal perjury carries up to five years in prison.5Office of the Law Revision Counsel. 18 USC 1621 – Perjury Generally The charge applies in any setting where an oath is authorized by federal law, including depositions, grand jury testimony, and written declarations signed under penalty of perjury.
Obstruction of Justice
The federal omnibus obstruction statute, 18 U.S.C. § 1503, reaches any corrupt effort to interfere with the administration of justice in a pending federal judicial proceeding. It is the broad umbrella covering fabrication that targets a court proceeding rather than an agency investigation. Penalties reach up to 10 years in prison for most cases, and up to 20 years when the obstruction involves an attempted killing or targets a juror in a serious felony case.6Office of the Law Revision Counsel. 18 USC 1503 – Influencing or Injuring Officer or Juror Generally
False Statements
Section 1001 also stands as its own charge when fabricated records or false representations are submitted to federal officials, adding up to five more years in prison for the same underlying act.3Office of the Law Revision Counsel. 18 USC 1001 – Statements or Entries Generally
Civil Sanctions in a Lawsuit
When fabrication surfaces in civil litigation, criminal prosecution is not the only risk. Courts have inherent authority to punish “fraud upon the court,” and the civil consequences can be as damaging as any sentence.
The most severe remedy is a terminating sanction: the court ends the case against the fabricating party. For a defendant, that means default judgment without a trial. For a plaintiff, it means dismissal of the entire lawsuit. Courts impose terminating sanctions when the misconduct is so fundamental that no lesser remedy would cure it.
Short of case termination, courts commonly impose other penalties:
- Evidence exclusion, which bars the fabricated material from trial and can gut a central part of the party’s case.
- Adverse inference instructions, which tell the jury to assume the fabricated evidence would have hurt the party that created it.
- Monetary sanctions, which require the fabricating party to pay the opposing side’s attorney’s fees and costs incurred in uncovering the fraud.
Federal Rule of Civil Procedure 11 adds another layer. By signing any court filing, an attorney or unrepresented party certifies that its factual claims have evidentiary support. Filing papers built on fabricated evidence violates that certification and exposes the signer to sanctions designed to deter the conduct, including court-ordered penalties and payment of the opposing party’s legal expenses.7Legal Information Institute. Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions
Fabrication sometimes goes undetected until after a case is over. Federal Rule of Civil Procedure 60(b)(3) allows a party to reopen a final judgment obtained through fraud, misrepresentation, or misconduct, but the motion must be filed within one year of the judgment. For outright fraud on the court, Rule 60(d)(3) preserves the court’s power to set aside a judgment with no time limit at all.8Legal Information Institute. Rule 60 – Relief From a Judgment or Order Garden-variety discovery misconduct falls under the one-year deadline; deliberate fabrication that corrupts the entire proceeding can be attacked indefinitely.
Professional Discipline for Attorneys
Lawyers who fabricate or knowingly present false evidence face career-ending discipline on top of any criminal liability. The ethical rules in every state, modeled on the ABA Model Rules of Professional Conduct, impose a duty of candor toward the court. Rule 3.3 prohibits lawyers from offering evidence they know to be false and requires them to refuse a client’s demand to present fabricated material.9American Bar Association. Rule 3.3 Candor Toward the Tribunal – Comment
The knowledge requirement matters. A lawyer who unknowingly presents a forged document supplied by a client has not violated the rule. But knowledge can be inferred from circumstances, and willful blindness is not a defense. When a lawyer suspects evidence is fabricated and chooses not to investigate, state bar authorities can and do treat that as a knowing violation. Sanctions range from public reprimand to suspension to permanent disbarment, with disbarment the typical outcome for deliberate fabrication. Disciplinary proceedings run independently of any criminal case, so a lawyer can be disbarred without a criminal conviction.
The duty extends beyond the lawyer’s own conduct. If a client insists on testifying falsely, the attorney must first try to dissuade them. If that fails, the attorney must refuse to elicit the false testimony and, in some circumstances, must inform the court of the fraud.
If Fabricated Evidence Has Been Used Against You
The law provides several ways to fight back, both during the case and after any conviction.
Constitutional Protections
The Supreme Court has held that the government’s use of false evidence violates a defendant’s due process rights under the Fourteenth Amendment. In Brady v. Maryland, the Court ruled that prosecutors must disclose evidence favorable to the defense, and that suppressing such evidence violates due process regardless of whether the prosecutor acted in good faith.10Justia Supreme Court Center. Brady v Maryland, 373 US 83 (1963) In Napue v. Illinois, the Court held that a conviction obtained through testimony the prosecution knew to be false cannot stand, even when the false testimony affected only the witness’s credibility.11Justia Supreme Court Center. Napue v Illinois, 360 US 264 (1959)
Motion to Suppress Before Trial
A defendant who suspects evidence has been fabricated can file a motion to suppress before trial. The defendant bears the burden of showing that the evidence was improperly obtained or that its prejudicial effect outweighs any legitimate value. These motions must be filed promptly once the problem is identified. If the court agrees, the evidence is excluded before the jury ever sees it.12National Institute of Justice. Law 101 – Legal Guide for the Forensic Expert – Motion to Suppress
Post-Conviction Relief
When fabricated evidence is discovered after a criminal conviction, the primary avenue is a federal habeas corpus petition under 28 U.S.C. § 2254. A convicted person can seek relief by showing that a constitutional violation, such as the government’s knowing use of false evidence, tainted the trial. The standard is demanding: the petitioner generally must show that, in light of all the evidence, no reasonable juror would have found them guilty. Federal habeas law also imposes strict procedural requirements, including limits on successive petitions and tight filing deadlines, which makes raising fabrication claims years after conviction especially difficult.
Civil Rights Lawsuits
Under 42 U.S.C. § 1983, a person whose constitutional rights were violated by a government official acting under color of state law can sue for damages.13Office of the Law Revision Counsel. 42 USC 1983 – Civil Action for Deprivation of Rights This is the main tool for suing police officers who fabricate evidence. A successful claim requires proof that the officer acted in an official capacity, that the fabrication violated a constitutional right such as due process, and that the plaintiff suffered real harm, such as imprisonment or reputational damage.
Prosecutors who fabricate evidence are much harder to sue. Absolute prosecutorial immunity shields prosecutors from lawsuits for conduct connected to their role as courtroom advocates. The only recognized exception is when a prosecutor steps outside that role and acts as an investigator, a line courts draw very narrowly. Even when that exception applies, the prosecutor can still invoke qualified immunity, which blocks the lawsuit unless the plaintiff shows the misconduct violated clearly established law.