Taser laws in California let most adults buy, carry, and use a stun gun for self-defense without a permit, registration, or background check. The catch is that certain people are barred from owning one at all, several places are off-limits to carry, and using a taser on someone outside a legitimate self-defense situation is a serious criminal offense. California’s statutes use “stun gun” and treat Taser-brand devices the same way, so the rules below apply to both.1California Legislative Information. California Penal Code 244.5
Who Cannot Legally Own a Taser
Penal Code 22610 sets a permissive default: any person may purchase, possess, or use a stun gun.2California Legislative Information. California Penal Code 22610 That puts tasers in a very different category from firearms. But the same statute pulls several groups back out of that default:
- Anyone convicted of a felony under federal, California, or any other jurisdiction’s law.
- Anyone convicted of any crime involving an assault, even if the conviction was a misdemeanor.
- Anyone convicted of assault with a stun gun under Penal Code 244.5.
- Anyone addicted to a narcotic drug.
- Anyone under 16.
- Teens aged 16 and 17, unless they have written consent from a parent or legal guardian.
The assault-conviction bar catches people off guard. A misdemeanor assault plea from years ago makes taser possession illegal, even though the person can still walk into a retail store and buy one with no questions asked. Because tasers require no background check at the point of sale, enforcement depends on the buyer knowing their own legal status. The store won’t stop you. The law will catch up later.
Where You Cannot Carry a Taser
Owning a taser legally does not mean you can carry it anywhere. Several location-based statutes make it a separate crime to bring one into specific places, and gun owners who assume their taser follows the same rules as a firearm often get this wrong.
Government Buildings
Penal Code 171b makes it illegal to bring a taser or stun gun into any state or local public building. That covers courthouses, city halls, DMV offices, and any government-owned or leased building where public employees regularly work. The penalty is up to one year in county jail or time in state prison.3California Legislative Information. California Penal Code 171b
Schools and Colleges
Penal Code 626.10 prohibits bringing a taser onto the grounds of any public or private K–12 school, college, or university. On-duty peace officers are exempt; ordinary civilians are not. A violation carries up to one year in county jail or state prison.
National Parks and Federal Property
Federal regulation 36 CFR 2.4 generally prohibits possessing or carrying a weapon in a National Park System unit. The regulation includes a carve-out for firearms when the owner complies with state law, but that exception applies only to firearms. Tasers and stun guns are not covered by the firearm exception, so they remain banned on National Park land even though California allows civilians to own them.4eCFR. 36 CFR 2.4 – Weapons, Traps and Nets
Using a Taser in Self-Defense
California’s self-defense framework applies to tasers the same way it applies to any other weapon. You can use a taser to defend yourself or another person when you reasonably believe you face an imminent threat of physical harm. The word that matters is “imminent.” A vague worry about future danger does not justify deploying a taser, and neither does retaliation after a threat has passed.5FindLaw. California Self Defense Laws
California imposes no duty to retreat before using force. If someone attacks you, you don’t have to try running first. But the force you use has to be proportional to the threat. Pulling a taser on someone who shoved you during a verbal argument looks very different to a jury than using one against an attacker who cornered you. Reasonable belief in imminent danger and proportional force are the two pillars of any self-defense claim.
When Using a Taser Becomes a Crime
Using a taser offensively triggers Penal Code 244.5, and this is where penalties get serious. The line between lawful self-defense and felony assault with a stun gun turns on whether your belief that you were in danger was reasonable.
Against Another Civilian
Assault with a stun gun against another person is a wobbler, meaning prosecutors can charge it as either a misdemeanor or a felony depending on the facts. A misdemeanor conviction carries up to one year in county jail. A felony conviction carries 16 months, two years, or three years in state prison.1California Legislative Information. California Penal Code 244.5
Against a Peace Officer or Firefighter
Using a taser on a peace officer or firefighter performing their duties carries a harsher penalty. If you knew or reasonably should have known the person was on-duty, the felony sentencing range increases to two, three, or four years in state prison. It remains a wobbler, but prosecutors almost always push for the felony.1California Legislative Information. California Penal Code 244.5
A conviction under Penal Code 244.5 does not preclude prosecutors from also filing charges under Penal Code 245 for assault with a deadly weapon if the facts support it. The two statutes can stack.
Penalties for Illegal Possession
Penal Code 22610’s own penalty language is narrower than most people expect. The statute’s only explicit penalty provision addresses selling or furnishing a stun gun to an unqualified minor: a $50 fine for the first offense, and a misdemeanor for any subsequent offense.2California Legislative Information. California Penal Code 22610
For a prohibited person who possesses a stun gun in violation of the statute, the violation defaults to California’s standard misdemeanor framework under Penal Code 19: up to six months in county jail, a fine of up to $1,000, or both.6California Legislative Information. California Penal Code 19 If a prohibited person actually uses the taser aggressively, the 244.5 assault charges carry far heavier consequences than the possession violation alone.
Rules for Security Guards and Officers
Peace officers are exempt from the location restrictions civilians face. Penal Code 626.10 carves out on-duty peace officers from the school-grounds prohibition, and Penal Code 171b provides similar exceptions for government buildings. Any law enforcement agency that authorizes tasers must also follow the training and deployment policies required by Penal Code 13660.
Licensed security guards operate under a different set of rules. The California Bureau of Security and Investigative Services allows guards with an active Private Patrol Operator or security guard license to carry a taser while on duty. Proprietary private security officers, meaning those employed directly by a business rather than through a licensed security company, cannot carry any electronic control device, stun gun, baton, or chemical agent while working.7California Bureau of Security and Investigative Services. Clarification Regarding Tear Gas and Other Deadly Weapons That distinction matters for anyone working in-house security who assumes they share the authority of a contracted guard.