Possession of Brass Knuckles - Penal Code 21810 PC

In California, carrying or possessing certain dangerous weapons can lead to serious criminal charges—even if you never use the weapon or intend to harm anyone. Under California Penal Code 21810 PC, it is illegal to manufacture, import, sell, lend, or possess metal or brass knuckles.

Because brass knuckles are categorized as "generally prohibited weapons" in California, law enforcement officers and prosecutors aggressively target their possession. PC 21810 is a "wobbler" offense, meaning prosecutors have the discretion to charge it as either a misdemeanor or a felony based on the facts of the case and the defendant's prior criminal history.

What Is California Penal Code 21810 PC?

California Penal Code 21810 PC makes it a crime to manufacture, import into California, offer for sale, give, lend, or possess metal or brass knuckles.

Exact Statutory Language

Under California Penal Code Section 21810 PC:

"Except as provided in Chapter 1 (commencing with Section 17700) of Division 2 of Title 2, any person in this state who manufactures or causes to be manufactured, imports into the state, keeps for sale, or offers or exposes for sale, or who gives, lends, or possesses any metal knuckles is punishable by imprisonment in a county jail not exceeding one year or imprisonment under subdivision (h) of Section 1170."

What Are Key Statutory Definitions Under PC 21810?

To understand how Penal Code 21810 PC is applied in California courtrooms, several key statutory terms defined by statute and California Jury Instructions (CALCRIM 2500) must be examined:

• Metal Knuckles (PC 16920): Under California Penal Code Section 16920 PC, metal or brass knuckles are legally defined as "any device or instrument made wholly or partially of metal that is worn for purposes of offense or defense in or on the hand and that protects the wearer's hand while increasing the force or effect of a punch or blow."

• Actual Possession: Having direct, physical control over the metal knuckles on your person (such as carrying them in your hand, clothing pocket, waistband, or purse).

• Constructive Possession: Having control over or the right to control the metal knuckles, even if they are not on your immediate person (such as keeping them in your vehicle's glove compartment, bedroom drawer, or backpack).

• Generally Prohibited Weapons (PC 16590): A master category of weapons—including metal knuckles, switchblades, leaded canes, and explosive devices—that California law completely bans from public manufacture, sale, or possession.

What Must Prosecutors Prove to Convict You of PC 21810?

To secure a conviction for possession of brass knuckles under Penal Code 21810 PC, prosecutors must prove each of the following legal elements beyond a reasonable doubt:

1. Prohibited Act: You manufactured, imported into California, kept for sale, offered for sale, gave, lent, or possessed metal knuckles.

2. Knowledge of Weapon Nature: You knew that you possessed, imported, or offered for sale an object that was a weapon consisting of metal knuckles.

3. Control over the Weapon: You had actual or constructive possession or physical control over the metal knuckles.

Important Note: Prosecutors do not need to prove that you intended to use the brass knuckles as a weapon, nor do they need to prove that you intended to injure anyone. Merely possessing them knowingly is sufficient for a criminal conviction.

What Are the Penalties for Possession of Brass Knuckles in California?

Because Penal Code 21810 PC is a "wobbler," prosecutors can file charges as either a misdemeanor or a felony depending on the circumstances of the arrest, whether the knuckles were involved in another offense (such as assault), and your prior criminal record.

Offense Level & Classification	Legal Criteria & Circumstances	Statutory Penalties & Custody Impact
Misdemeanor PC 21810	First-time offense; passive possession; no violent conduct involved.	Up to 1 year in county jail, a fine of up to $1,000, and summary probation.
Felony PC 21810	Prior felony record; gang allegations; brass knuckles carried during a violent dispute.	16 months, 2 years, or 3 years in county jail/state prison, a fine up to $10,000, and formal probation.
Immigration Consequences	Non-citizen green card or visa holders convicted of a felony weapon charge.	Potential classification as a crime involving moral turpitude, leading to deportation or inadmissibility.

An experienced California criminal defense attorney at the Esfandi Law Group can build a strong strategy to challenge allegations under Penal Code 21810 PC:

The Item Does Not Meet the Statutory Definition

Not every hand object, heavy ring, novelty gift, or paperweight qualifies as "metal knuckles" under PC 16920. If the item is made of hard plastic, acrylic, wood, or lacks proper knuckle protection features designed to multiply force, defense counsel can argue the item falls outside the statutory ban.

Lack of Possession or Knowledge

If the brass knuckles were discovered in a shared vehicle, a roommate's room, or a house with multiple occupants, your attorney can establish that you did not have actual or constructive control over the weapon and were unaware of its presence.

Unlawful Search and Seizure (PC 1538.5)

If law enforcement officers discovered the brass knuckles during an illegal traffic stop, an unconstitutional pat-down search without reasonable suspicion, or a home search conducted without a valid search warrant, defense counsel can file a Motion to Suppress Evidence under Penal Code 1538.5 PC. If granted, the evidence is thrown out, typically forcing a full case dismissal.

Hypothetical Example of a PC 21810 Case

Scenario: The Traffic Stop Discovery

• The Incident: Marcus is pulled over by police officers in Los Angeles for driving with a broken taillight. During the stop, officers ask Marcus to step out of the vehicle and perform a pat-down search. In Marcus's jacket pocket, officers find a heavy brass novelty paperweight shaped like finger rings that Marcus purchased at an antique shop.

• The Prosecution's Position: The arresting officers classify the item as brass knuckles and arrest Marcus, charging him with misdemeanor possession of a generally prohibited weapon under Penal Code 21810 PC.

• The Defense Strategy: Marcus retains a criminal defense attorney. Counsel files a two-pronged defense: first, arguing that the pat-down search violated the Fourth Amendment under PC 1538.5 because officers lacked reasonable suspicion that Marcus was armed and dangerous; second, presenting expert testimony that the decorative antique paperweight does not meet the legal definition of metal knuckles under PC 16920.

• The Legal Outcome: The judge agrees that the search was unlawful and grants the defense motion to suppress. Without the physical evidence, the prosecutor issues a formal rejection ("DA reject") and dismisses all criminal charges against Marcus.

What Laws Relate to California Brass Knuckles Laws?

Understanding related statutory provisions is critical because California strictly regulates a wide array of concealed blades, impact weapons, and prohibited items under the California Penal Code.

• Penal Code 16590 PC (Generally Prohibited Weapons): Serves as the master statute outlining all illegal weapons in California, including brass knuckles, nunchakus, and short-barreled shotguns.

• Penal Code 21510 PC (Possession of a Switchblade): Criminalizes carrying, possessing in public, or selling a switchblade knife with a blade 2 inches or longer.

• Penal Code 21310 PC (Carrying a Concealed Dirk or Dagger): Prohibits carrying any hidden stabbing weapon or fixed-blade knife upon your person.

• Penal Code 20610 PC (Lipstick Case Knife): Makes it a wobbler offense to manufacture, import, sell, or possess a knife hidden within a cosmetic lipstick container.

• Penal Code 243(d) PC (Aggravated Battery): Elevates battery penalties if brass knuckles are used during an assault to inflict serious bodily injury on another person.

Frequently Asked Questions (FAQs)

Are brass knuckles legal to own in California if kept only at home?

No. Unlike certain firearms, California Penal Code 21810 PC makes simple possession of brass knuckles illegal anywhere in the state—including inside your private residence, on private property, or inside a personal vehicle.

Can plastic or wooden knuckles lead to a PC 21810 charge?

No. Penal Code 16920 PC specifically defines metal knuckles as devices made "wholly or partially of metal." However, possessing plastic or wooden knuckles may still lead to charges under other statutes if you use them as a dangerous weapon during a confrontation.

Is carrying brass knuckles a misdemeanor or a felony in California?

PC 21810 is a "wobbler" offense. First-time offenders carrying brass knuckles without any aggravating violent conduct are typically charged with a misdemeanor (up to 1 year in county jail). Repeat offenders or individuals involved in violent disputes face felony charges (up to 3 years in prison).

Can you buy brass knuckles online and have them shipped to California?

No. Importing metal knuckles into California from another state or purchasing them online for delivery into California violates PC 21810's prohibition against "importing" or "causing to be manufactured" prohibited weapons.

What should you do if police find brass knuckles in your car?

Exercise your Fifth Amendment right to remain silent immediately. Do not attempt to explain why you have the item or where you purchased it. Tell the officers you are exercising your right to remain silent and ask to speak with a defense attorney right away.

Speak with a LA Defense Lawyer for Help

Being arrested or charged with possession of a prohibited weapon under California Penal Code 21810 PC can put your freedom, clean record, and professional future on the line.

Whether you face a misdemeanor charge or a felony wobbler prosecution, an experienced trial attorney should evaluate the legality of the police search.

At Esfandi Law Group, our Los Angeles criminal defense lawyer brings decades of experience fighting illegal search-and-seizure cases, challenging weapon definitions, and negotiating with prosecutors to secure pre-filing dismissals ("DA rejects") or charge reductions.

Contact our Los Angeles office today for a confidential case evaluation by phone or through our website contact form.