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Assault on a Federal Officer (18 U.S.C. § 111): Charges, Penalties, and Defense

Posted by Dmitry Gorin | May 05, 2026

Federal law affords strict protections for government officers and employees, imposing harsh penalties for those convicted of using force against federal officers while they are performing their official duties.

Assault on a Federal Officer (18 U.S.C. § 111)

Under 18 U.S.C. § 111, even simple assault--a relatively minor offense by state standards--can result in up to a year in prison when committed against a federal officer or employee.

If physical contact occurs or other aggravating factors are present, the prison term can reach 8 years or even 20 years.

Federal prosecutors take these charges seriously and pursue them aggressively. Unfortunately, the statute is so strict that even incidental contact with an official (for example, bumping them in a crowd) can sometimes be misinterpreted as assault and result in federal charges--potentially threatening your freedom and your reputation.

In situations like these, only a skilled, aggressive defense strategy can help you avoid the worst outcomes.

 At Eisner Gorin, LLP, our federal criminal defense attorneys have abundant experience with these types of cases, and we employ a comprehensive strategy tailored to minimize your exposure. Schedule your consultation by calling (818) 781-1570 or using the contact form


What Constitutes Assault on a Federal Officer?

Under 18 U.S.C. § 111, it is a federal crime to forcibly assault, resist, oppose, impede, intimidate, or interfere with a protected federal officer or employee while they are performing their official duties.

The verbs in this statute are intentionally broad. The government does not need to prove that you physically struck an officer to secure an indictment for assault, interference, or resistance. It only needs to prove that you took a forcible action in that direction.

Quick Answer

You can be charged under 18 U.S.C. § 111 if you:

  • Use force against a federal officer
  • Attempt to use force
  • Resist, intimidate, or interfere with their duties

Physical contact is not always required.


Can I Be Charged with Assaulting an Officer if No Contact Was Made?

Yes, you can. Under federal law, simple assault refers to the use of force, whether or not you actually made contact with the target. For example, if you tried to punch a government employee but missed, you could still be charged with assault.

Force does not exclusively mean a violent strike or a weapon. It can encompass a wide range of physical acts, including aggressive posturing combined with physical resistance.

In essence, any physical action taken against a federal employee with the intent to harm, resist, or impede them--anything more than a verbal threat--may count as assault.

What Government Employees are Protected Under 18 U.S.C. § 111?

18 U.S.C. § 111 extends protection to a wide range of government officers and employees, including law enforcement, federal investigators, TSA agents, and even post office employees.

This statute relies on the same definition of federal officer that is used in 18 U.S.C. 1114. The law covers a vast array of officers and employees under this protective umbrella, including, but not limited to:

  • Federal Bureau of Investigation (FBI) agents
  • Drug Enforcement Administration (DEA) agents
  • Transportation Security Administration (TSA)
  • United States Postal Service (USPS) workers
  • Federal Judges
  • Capitol Police
  • Individuals who assist these officers in their duties

What Must Prosecutors Prove to Convict Me of Assaulting a Federal Officer?

To procure a conviction, federal prosecutors must prove the following beyond a reasonable doubt:

  • You used force against a federal officer or employee;
  • The victim in question was engaged in their official duties at the time of the assault; and
  • You did so for the purposes of harming, impeding, resisting, intimidating, or interfering with them.

What Kinds of Actions Can Lead to Federal Assault Charges?

Actions that can potentially trigger federal assault charges range from physical attacks to aggressive confrontations to physically interfering with the official's duties. The primary determinant is that the action must be "forcible" (i.e., use of force).

A federal assault charge does not always require a violent physical attack; even minor physical resistance or aggressive intimidation can trigger a felony indictment under 18 U.S.C. 111.

Because the statute covers resisting and impeding, many defendants are surprised to face federal charges for actions they considered minor disputes.

The following are common scenarios that can result in an indictment:

  • Physical Altercations: This is the most direct violation. Pushing, shoving, striking, or grabbing a federal officer during an inspection, arrest, or standard questioning will typically trigger charges.
  • Intimidation and Threats: Advancing aggressively into a federal worker's personal space while making verbal threats or raising a fist can satisfy the requirements for forcible intimidation.
  • Interfering with Duties: Examples include physically blocking a postal worker from delivering mail or stepping in front of a federal safety inspector to prevent access to a site.

Common Situations That Lead to Charges

Physical Altercations

Pushing, grabbing, or striking a federal officer during an investigation or arrest.

Interference with Duties

Blocking access, preventing inspections, or disrupting official actions.

Intimidation or Threatening Conduct

Aggressive movements or behavior that interferes with an officer's work.


What Are the Penalties for a Conviction Under 18 U.S.C. § 111?

Maximum penalties for assaulting a federal officer depend on the severity of the assault--ranging from up to a year in prison for simple, no-contact assault to a 20-year maximum penalty if a deadly weapon was involved.

Specifically, you could face one of three tiers of punishment if convicted under U.S.C. § 111:

  • Simple Assault: If the act involves no physical contact with the officer and there is no intent to commit another felony, the penalty for simple assault is a fine, imprisonment for up to one year, or both.
  • Physical Contact or Felony Intent: If the acts involve physical contact with the victim of the assault, a conviction is punishable by a fine, imprisonment for up to eight years, or both.
  • Enhanced Penalties: The most severe consequences are reserved for cases involving dangerous weapons or actual harm. If the defendant uses a deadly or dangerous weapon (even if the weapon is defective and fails to cause harm) or inflicts bodily injury upon the officer, the maximum penalty increases to 20 years in federal prison.

Penalties Chart for 18 U.S.C. § 111

Penalties depend on the severity of the conduct:

Level of Offense Description Maximum Penalty

Simple Assault

No physical contact or minor conduct

Up to 1 year in jail

Physical Contact

Contact or intent to commit another felony

Up to 8 years in prison

Aggravated Assault

Use of a weapon or bodily injury

Up to 20 years in prison

Additional consequences may include fines, probation, and a permanent federal criminal record.


Real-World Example

A traveler at an airport becomes frustrated during a TSA screening. When an agent attempts a pat-down, the traveler swats the agent's hand away and steps forward aggressively.

Even though the contact is brief, this action may be considered forcible interference under 18 U.S.C. § 111, leading to federal charges.

Related Laws

Federal assault cases do not exist in isolation. Several statutes work together to define who is protected, what conduct is criminal, and how cases are prosecuted or defended. Understanding these laws helps clarify how charges under 18 U.S.C. § 111 are built—and challenged.


18 U.S.C. § 1114 – Protected Federal Officials

Defines which individuals are covered under federal protection, including law enforcement agents, federal employees, judges, and those assisting them. This statute determines whether § 111 applies in a given case.


18 U.S.C. § 1501 – Obstruction of Federal Duties

Makes it a crime to knowingly and willfully obstruct or interfere with federal officers serving legal process. Often charged alongside or instead of § 111 in interference-based cases.


18 U.S.C. § 113 – Federal Assault Crimes

Covers various types of assault occurring on federal property (such as military bases or federal buildings). Depending on the location, this statute may overlap with or supplement § 111 charges.


18 U.S.C. § 924(c) – Use of a Weapon During a Crime

Provides enhanced penalties if a firearm or dangerous weapon is used during a federal offense, including assault on a federal officer. This can significantly increase prison exposure.


Fourth Amendment to the United States Constitution – Constitutional Protections

Ensures that evidence used in federal cases is obtained lawfully. If officers violate search and seizure rules, a defense attorney may seek to suppress evidence.


Key Takeaway

These laws collectively shape how federal assault cases are charged, prosecuted, and defended. A strong legal strategy often involves analyzing how these statutes interact—and identifying weaknesses in the government's case.


Frequently Asked Questions

Can I be charged if I didn't hit the officer?

Yes. Attempted force or interference can be enough.


What if the contact was accidental?

Lack of intent may be a valid defense.


Are TSA agents considered federal officers?

Yes. They are protected under federal law.


Is this always a felony?

No. It can be a misdemeanor or a felony depending on the facts.


Can charges be reduced or dismissed?

Yes, especially if the evidence is weak or the intent cannot be proven.


Should I talk to federal agents?

No. You should speak with a defense attorney first.


What Defenses Are Available Against Federal Officer Assault Charges?

A skilled federal criminal defense attorney will commonly counter charges under U.S.C. § 111 by showing that you lacked willful intent or acted in self-defense, or that the victim in question was not on duty at the time.

Defending against federal assault charges requires a comprehensive challenge to the prosecution's evidence, often focusing on intent, self-defense, or procedural violations. An effective legal defense systematically dismantles the government's burden of proof.

Our legal team utilizes several structured defense strategies to protect clients facing these allegations:

  • Lack of Requisite Intent: We may argue that the physical contact was accidental or incidental, lacking intent to assault. For example, stumbling and bumping into an officer in a crowded space is not a forcible assault.
  • Not Engaged in Official Duties: If the altercation was personal and disconnected from the officer's government role, or the officer was engaged in their duties, the federal statute does not apply (although state assault charges might).
  • Self-Defense: In certain circumstances, if we can show that our physical actions were an appropriate response to a federal officer employing excessive, unlawful force, self-defense may apply.
  • Challenging the Evidence: We'll analyze body camera footage, acquire bystander cell phone video, and interview witnesses to dispute the government's narrative of your actions.

Theoretical Case Study

To show how Eisner Gorin, LLP may address charges of assault against a federal officer, consider the following theoretical case study.

The Scenario

Don is a frustrated business traveler experiencing significant delays at a security checkpoint at Los Angeles International Airport (LAX). Due to an anomaly on the body scanner, a TSA agent pulls Don aside for a secondary physical "pat-down."

Stressed about missing a flight, Don becomes verbally combative. As the TSA agent reaches toward his waistband, Don sharply swats the agent's hand away and steps aggressively into the agent's personal space, shouting at them to stop.

Don is detained by airport police and eventually charged with a felony under 18 U.S.C. § 111.

Our Defense Strategy

Upon retention, our legal team initiates a comprehensive review of the incident. The first step is to subpoena the airport security footage from multiple angles.

The legal team uses the footage to demonstrate that the contact was minimal, fleeting, and reactionary rather than a calculated, aggressive assault.

We also analyze federal case law to evaluate the exact legal definition of "forcibly" as it applies to a defensive swatting motion.

We approach federal prosecutors with the gathered evidence, emphasizing Don's complete lack of criminal history and the absence of any intent to harm the agent or commit a subsequent felony.

The Outcome

Through precise negotiation and presentation of the mitigating visual evidence, we're able to get prosecutors to agree to reduce the charge from a felony involving physical contact to a simple misdemeanor.

Furthermore, we negotiate for Don's entry into a pre-trial diversionary program. Upon Don's successful completion of anger management and community service, the charges are dismissed entirely, helping Don avoid a devastating federal record and protect his future livelihood.

Eisner Gorin LLP is ready to assist you. Book your consultation now. Our law firm is located in Los Angeles.

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About the Author

Dmitry Gorin

Dmitry Gorin is a State-Bar Certified Criminal Law Specialist, who has been involved in criminal trial work and pretrial litigation since 1994. Before becoming partner in Eisner Gorin LLP, Mr. Gorin was a Senior Deputy District Attorney in Los Angeles Courts for more than ten years. As a criminal tri...

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