California’s Three Strikes Law doubles the prison term for any new felony when the defendant has one prior conviction for a serious or violent felony, and imposes 25 years to life when the defendant has two or more such priors and the new offense is itself serious or violent. Voters and the Legislature enacted the framework in 1994 through AB 971 and Proposition 184, and Proposition 36 reshaped it in 2012 by requiring, in most cases, that the third felony also be serious or violent before the life term applies.1Legislative Analyst’s Office. The Three Strikes and You’re Out Law2California Secretary of State. Proposition 36 Title and Summary The rules that follow control how a court gets from a rap sheet to a number of years.
What Counts as a Strike
A strike is a prior conviction for a serious felony under Penal Code Section 1192.7(c) or a violent felony under Section 667.5(c). The two lists overlap heavily but are not identical, and the difference affects both credits in prison and eligibility for certain relief.
Section 1192.7(c) names more than 40 serious felonies, including murder, voluntary manslaughter, rape, robbery, kidnapping, first-degree burglary, arson, carjacking, assault with a deadly weapon on a peace officer, and any felony in which the defendant personally used a firearm or inflicted great bodily injury. Selling heroin, cocaine, PCP, or methamphetamine to a minor qualifies, as does any felony committed in connection with a criminal street gang.3California Legislative Information. California Penal Code PEN 1192.7
Section 667.5(c) defines violent felonies: murder, voluntary manslaughter, mayhem, rape, certain sex offenses against children, robbery, arson, kidnapping, carjacking, attempted murder, continuous sexual abuse of a child, any felony punishable by life or death, and any felony where the defendant inflicted great bodily injury or used a firearm under specified sections.4California Legislative Information. California Penal Code PEN 667.5
First-degree burglary is always serious but only violent if someone other than an accomplice was present in the residence. That distinction can change how much of a sentence a second striker serves and whether certain post-conviction remedies are available.
Strikes do not expire. A serious or violent felony from decades ago counts the same as one from last year. There is no washout period, and the gap between the prior and the new offense does not limit the court.5Legislative Analyst’s Office. A Primer – Three Strikes, The Impact After More Than a Decade
Second-Strike Sentencing
A defendant with one prior strike who is convicted of any new felony faces a second-strike sentence. The new offense does not need to be serious or violent for the doubling rule to apply.
The court selects a term from the standard sentencing triad for the current offense and doubles it. A four-year term becomes eight; a six-year term becomes twelve.6California Legislative Information. California Penal Code 1170.12 Because doubling amplifies the base choice, which term the court selects (low, middle, or upper) matters more here than in ordinary sentencing.
Multiple counts also compound quickly. When a second striker is convicted of felonies that did not arise from the same occasion or the same set of facts, the court must run those sentences consecutively rather than concurrently.7California Legislative Information. California Penal Code 667 Two burglaries committed on different days each carry their own doubled term, served back to back.
How much of a doubled sentence a second striker actually serves depends on whether the current conviction is for a violent felony. Under California Department of Corrections and Rehabilitation regulations, a second striker convicted of a violent felony earns one day of good-conduct credit for every two days served, roughly 75 percent of the sentence in custody. A second striker convicted of a non-violent felony earns one day of credit for each day served, or about 67 percent of the sentence.8Legal Information Institute. California Code of Regulations Title 15 3043.2 – Good Conduct Credit Either rate leaves a second striker serving substantially more of the sentence than a typical first-time felony offender.
Third-Strike Sentencing
A defendant with two or more prior strikes who is convicted of a new serious or violent felony receives an indeterminate life sentence. Parole eligibility begins after a minimum term calculated as the greatest of three figures:
- Three times the base term for the current felony
- 25 years
- The full determinate term the court would otherwise impose, including any applicable enhancements
Whichever produces the longest number becomes the minimum.6California Legislative Information. California Penal Code 1170.12 For many offenses, 25 years controls. A nine-year base term, however, produces a 27-year minimum, because three times nine exceeds 25.
A third-strike life sentence runs consecutively to any other prison term. The defendant is ineligible for probation, and parole consideration only opens once the full minimum has been served.
When a Non-Serious Felony Still Triggers Life
Before November 2012, any felony could trigger a third-strike life sentence for a defendant with two prior strikes. Shoplifting or simple drug possession could produce 25 to life. Proposition 36 narrowed the trigger: the current offense must generally be serious or violent, and if it is not, the defendant is sentenced as a second striker.9Legislative Analyst’s Office. Proposition 36 – Three Strikes Law, Sentencing for Repeat Felony Offenders, Initiative Statute
Certain features of the current case override that narrowing. A life sentence still applies when the current offense is a controlled substance charge involving special quantity-based allegations, a felony sex offense requiring registration, or an offense in which the defendant used a firearm, was armed with a firearm or deadly weapon, or intended to cause great bodily injury.6California Legislative Information. California Penal Code 1170.12
Super Strikes
A separate set of exceptions focuses on the defendant’s history. If any prior strike falls into the category informally called a super strike, the defendant faces life for any new felony, even one that is neither serious nor violent. Super strike priors include:10California Legislative Information. California Penal Code PEN 667
- Any sexually violent offense
- Certain sex crimes against a child under 14 who is more than 10 years younger than the defendant
- Lewd or lascivious acts with a child under 14
- Any homicide, including attempted homicide
- Solicitation to commit murder
- Assault with a machine gun on a peace officer or firefighter
- Possession of a weapon of mass destruction
- Any serious or violent felony punishable by life imprisonment or death
A defendant with a super strike is effectively treated under the pre-2012 version of the law. The prosecution must plead and prove the disqualifying prior.
Priors From Other Courts and Juvenile Cases
An out-of-state or federal conviction can count as a California strike if the offense would have been punishable by state prison in California and contains all the elements of a California serious or violent felony.7California Legislative Information. California Penal Code 667 Courts compare elements, not labels. A federal robbery conviction only qualifies if the federal statute lines up with California robbery; if the outside statute is broader and can be violated in ways California would not treat as a strike, it may not count.
A juvenile true finding can count as a strike only if all three of the following are true:
- The minor was 16 or 17 at the time of the offense.
- The offense is a listed serious or violent felony.
- The offense also appears on the Welfare and Institutions Code Section 707(b) list of offenses eligible for adult court transfer.
A juvenile adjudication dismissed under Welfare and Institutions Code Section 782 before the new adult offense cannot be used. An expungement under Section 1772 does not block its use.
The Five-Year Serious Felony Enhancement
On top of the strike rules, Penal Code Section 667(a)(1) adds a five-year consecutive enhancement for each prior serious felony conviction when the current conviction is also a serious felony and the priors were brought and tried separately from each other. The five-year terms stack, so two qualifying priors add ten years.
Before 2019, the enhancement was mandatory. A legislative change removed the bar on dismissing it, giving courts discretion to strike it in the furtherance of justice.11California Legislative Information. California Penal Code PEN 1385 The difference can be substantial: a second striker facing a doubled six-year term plus two five-year enhancements sees 22 years without dismissal and 12 with both struck.
When a Judge or Prosecutor Can Dismiss a Strike
A California judge can strike a prior conviction for sentencing purposes through what practitioners call a Romero motion, after the 1996 California Supreme Court decision recognizing the authority. The statutory basis is Penal Code Section 1385, which allows dismissal of an action or enhancement in the furtherance of justice. If the court strikes one prior for a defendant with two, the sentence drops from third-strike life to a doubled second-strike term. Strike both, and the defendant is sentenced as a first-time offender.
The court considers whether the defendant falls outside the spirit of the Three Strikes law, weighing the criminal history and background, the nature of the current offense, prospects for rehabilitation, and the aggravating and mitigating circumstances.12Judicial Branch of California. California Rules of Court, Rule 4.428 – Factors Affecting Imposition of Enhancements Old strikes and a minor current offense make a stronger case than recent priors and a serious current charge. The judge must state reasons on the record.
Effective January 1, 2022, SB 81 added provisions to Section 1385 creating a presumption in favor of dismissing enhancements when certain mitigating circumstances are present. The court must give great weight to factors including:
- The enhancement is based on a prior conviction more than five years old.
- Multiple enhancements are alleged in a single case.
- The enhancement could result in a total sentence exceeding 20 years.
- The current offense is connected to mental illness, childhood trauma, or prior victimization.
- The defendant was a juvenile at the time of the current offense or any prior offense triggering the enhancement.
- The current offense is not a violent felony.
When one of these factors is present, the statute directs dismissal unless doing so would endanger public safety, defined as a likelihood of physical injury or other serious danger. SB 81 does not apply where an initiative statute prohibits dismissal of the enhancement, and because the Three Strikes law was enacted through Proposition 184 as well as legislation, whether the presumption reaches strike priors directly remains actively litigated. The listed factors still inform the traditional Romero analysis, and defense attorneys rely on them when asking a court to strike a prior.
Prosecutors can also move to dismiss prior strikes in the furtherance of justice, and they do. Research by the Legislative Analyst’s Office found priors dismissed in roughly 25 to 45 percent of third-strike cases in some counties, producing significant variation across California in how the law is applied.5Legislative Analyst’s Office. A Primer – Three Strikes, The Impact After More Than a Decade
Resentencing for People Already Serving a Third-Strike Life Term
Proposition 36 also opened a path for people already serving life under the old rules. Under Penal Code Section 1170.126, an inmate serving an indeterminate life term for a third-strike conviction may ask the original trial court to recall the sentence if the triggering conviction was not a serious or violent felony.13California Legislative Information. California Penal Code 1170.126
To qualify, the inmate must have no super strike prior and must not have been convicted of a current offense in the excluded categories (registrable sex offenses, certain drug charges, or offenses involving firearms or great bodily injury). If the petitioner is eligible, the court resentences them as a second striker unless it finds release would pose an unreasonable risk of danger to public safety. In evaluating that risk, the court looks at the full criminal history, prison disciplinary record, evidence of rehabilitation, and any other relevant information. The original filing deadline was two years after the reform’s effective date, but courts can accept later petitions for good cause.