Mailing Threatening Communications – 18 U.S.C. § 876

Threatening or extortionate communications can result in serious criminal charges under both California and federal law.

While California prosecutes threats and extortion under statutes such as Penal Code 422 (criminal threats) and Penal Code 523–524 (extortion and blackmail), using the United States Postal Service to send a threat can elevate the conduct to a federal felony under 18 U.S.C. § 876.

Federal threat cases are aggressively prosecuted, carry substantial prison exposure, and involve powerful investigative agencies. Understanding when a threat becomes a federal crime—and how to defend against it—is critical.

What are Mailing Threatening Communications?

18 U.S.C. § 876 makes it a federal offense to knowingly deposit in the mail any letter or package that contains a threat to injure, kidnap, extort, or blackmail another person.

Plain-English Definition

It is illegal under federal law to use the mail to:

Threatening physical harm or kidnapping, or
Coerce someone into providing money, property, services, or other benefits through threats.

Importantly, the government does not need to prove that:

The threat was successful, or
The intended recipient actually received or read the communication.

The act of knowingly using the U.S. mail is sufficient to establish federal jurisdiction.

What Conduct Constitutes a Federal Mail Threat?

Four Ways 18 U.S.C. § 876 Is Violated

Federal law criminalizes the use of the mail to:

Demand ransom for a kidnapped person
Attempt extortion through threats of kidnapping or physical injury
Threatening kidnapping or bodily harm without making a demand
Extort or blackmail by threatening damage to property, reputation, or economic interests

Required Elements of the Offense

To obtain a conviction, federal prosecutors must prove:

A letter or package was addressed to another person
The communication contained a qualifying threat
The item was knowingly deposited into the U.S. mail with the intent that it be delivered

Whether the letter was intercepted, unopened, or ignored does not matter.

Is Blackmail the Same as Extortion Under Federal Law?

Yes. Blackmail is a form of extortion under federal law.

Types of Threatened Harm

A threat may involve:

Physical injury
Kidnapping
Property damage
Financial or economic harm
Damage to reputation
Disclosure of confidential or embarrassing information

Depending on the method of communication, prosecutors may charge violations of:

18 U.S.C. § 876 (mail threats)
18 U.S.C. § 875 (wire or interstate threats)
18 U.S.C. § 873 (blackmail)

When Is a Threat Prosecuted Federally Instead of Under California Law?

California criminalizes extortion through Penal Code 523 PC, which applies to written threats, including physical letters, emails, and ransomware demands.

However, federal jurisdiction depends on how the threat was transmitted and the nature of the conduct.

Threats More Likely to Be Charged as State Crimes

A case may remain in state court if:

The letter was delivered by hand or private courier
The communication did not involve the U.S. Mail
The threat does not involve ransom or federal officials

Threats More Likely to Be Charged as Federal Crimes

Federal prosecution becomes more likely when:

The U.S. Mail is used
The threat involves kidnapping, ransom, or extortion
The target is a federal judge or official
The conduct involves interstate or international activity

Although wire-based extortion is now more common, mailed threats remain fully prosecutable under federal law.

Who Investigates Federal Threat and Extortion Cases?

Federal threat investigations are typically initiated after a victim complaint and may involve multiple agencies, including the Federal Bureau of Investigation, the U.S. Postal Inspection Service, Homeland Security Investigations, and the U.S. Secret Service.

These agencies possess extensive investigative authority, advanced forensic capabilities, and significant prosecutorial resources.

What Are the Federal Penalties for Mailing Threatening Communications?

Sentencing is governed by the United States Sentencing Guidelines and depends on the severity and target of the threat.

Maximum Penalties Under 18 U.S.C. § 876

Up to 5 years in federal prison
For general threats or non-violent extortion
Up to 10 years in federal prison
When the threat targets a federal judge or official
Up to 20 years in federal prison
For ransom demands or extortion involving threats of kidnapping or bodily harm

Convictions may also result in substantial fines, supervised release, and long-term collateral consequences.

Related Federal Threat and Extortion Charges

Federal prosecutors frequently add related charges, including:

18 U.S.C. § 1201 – Kidnapping (up to life imprisonment)
18 U.S.C. § 875 – Interstate Threats and Extortion
18 U.S.C. § 873 – Blackmail
18 U.S.C. § 871 – Threats Against the President
18 U.S.C. §§ 877–880 – Threats Against Foreign Officials and Receiving Extortion Proceeds

Common Defenses to Mailing Threatening Communications

Mail threat cases are defensible, and outcomes often depend on intent, context, and constitutional protections.

Common Legal Defenses

Lack of intent – No knowing use of the mail
No knowledge of contents – Unaware that the communication contained a threat
No “true threat” – Satire, exaggeration, or protected speech under the First Amendment
Accidental or misdirected mailing – No intent that the letter be delivered

Each case requires a detailed analysis of the language used, the surrounding circumstances, and the prosecutorial evidence.

Federal Threat Charges Require Immediate Legal Representation

Federal prosecutors move quickly, and early intervention can significantly impact the outcome of a case. If you are under investigation or have been charged with mailing threatening communications, do not speak to investigators without counsel.

The attorneys at Cron, Israels & Stark represent clients facing serious federal criminal charges throughout Southern California. Call (424) 372-3112 or contact us to schedule a confidential consultation.

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Threatening Communications