California criminal justice reform refers to the wave of laws and ballot measures, beginning in 2011, that reduced the state’s prison population, softened sentencing for lower-level offenses, changed how juveniles enter adult court, limited cash bail, and automated the clearing of old convictions. A 2024 ballot measure then tightened penalties for repeat theft and hard-drug offenses, partially rolling back the earlier reforms. If you are trying to understand what changed, when, and what the rules look like today, the sections below walk through each major reform in the order it took effect.
Why the Reforms Started
The reforms trace to a single legal problem. California’s prisons held nearly twice as many people as they were designed for, and medical and mental health care inside them had deteriorated to the point the U.S. Supreme Court found a constitutional violation. In 2011, the Court upheld a lower court order in Brown v. Plata requiring the state to reduce its prison population to 137.5 percent of design capacity within two years.1Justia. Brown v. Plata, 563 U.S. 493 (2011) A population cap, the Court held, was the only workable remedy.2Legal Information Institute. Brown v. Plata
California responded with Assembly Bill 109, the Public Safety Realignment Act, signed by Governor Jerry Brown in 2011. AB 109 shifted responsibility for incarcerating and supervising lower-level felons from state prisons to county governments. The law covers people convicted of offenses that are non-serious, non-violent, and do not require sex offender registration, sometimes called “triple-non” offenders. Those people now serve their sentences in county jail instead of state prison, and those released from prison under the same criteria are supervised by county probation departments through Post Release Community Supervision rather than state parole.3California Legislative Information. SB-10 Pretrial Release or Detention: Pretrial Services Judges also gained the option to split sentences between jail time and supervised release in the community. Within three years, the prison population dropped from roughly 190 percent of design capacity to about 141 percent, and it eventually fell below the court-ordered ceiling after later reforms took effect.
Three Strikes Reform in 2012
California’s original three strikes law, enacted in 1994, imposed a minimum sentence of 25 years to life on anyone convicted of a third felony if they had two prior serious or violent felony convictions. The third strike itself did not have to be serious or violent, which produced life sentences for crimes as minor as shoplifting. Proposition 36 of 2012, the Three Strikes Reform Act, changed that rule.4Legislative Analyst’s Office. Proposition 36: Three Strikes Law. Sentencing for Repeat Felony Offenders
Under the reformed law, a person with two prior serious or violent felony strikes whose new offense is non-serious and non-violent receives a sentence of twice the normal term for the new crime, not 25-to-life.5California Legislative Information. California Penal Code 667 – Habitual Criminals The life sentence still applies for certain drug, sex, and gun-related third strikes, and for people whose prior strikes include especially serious offenses such as homicide, sexually violent crimes, or assault with a machine gun on a peace officer.
The reform also applied retroactively. People already serving 25-to-life sentences whose third strike was non-serious and non-violent could petition for resentencing, which courts granted unless the person posed an unreasonable risk to public safety based on criminal history, prison behavior, and rehabilitation.6California Legislative Information. California Penal Code 1170.126 – Resentencing Over a thousand people were released under this provision in the years that followed.
Proposition 47 and the $950 Threshold
Proposition 47, the Safe Neighborhoods and Schools Act passed in November 2014, was the largest single reform of the era. It reclassified a range of non-violent felonies as misdemeanors.7Board of State and Community Corrections. Proposition 47 – The Safe Neighborhoods and Schools Act
The core of the measure is a $950 threshold for property crimes. Theft of property worth $950 or less is petty theft, a misdemeanor, regardless of how prior law would have classified it.8California Legislative Information. California Penal Code 490.2 – Petty Theft Entering a store during business hours intending to steal $950 or less in merchandise is misdemeanor shoplifting, not felony burglary.9California Legislative Information. California Penal Code 459.5 – Shoplifting The same $950 line governs forgery, writing bad checks, and receiving stolen property. Personal-use possession of most controlled substances also dropped from a potential felony to a misdemeanor.
Proposition 47 also opened the door for people with older convictions. Anyone currently serving a sentence for a reclassified offense could petition for resentencing, and anyone who had already completed a sentence could apply to have the felony reduced to a misdemeanor on their record.7Board of State and Community Corrections. Proposition 47 – The Safe Neighborhoods and Schools Act That record change matters: a felony can block employment, licensing, and housing. Savings from reduced incarceration were directed to a Safe Neighborhoods and Schools Fund supporting mental health services, substance abuse treatment, diversion programs, school dropout prevention, and victim services, reaching about $95 million per year before being reduced by the 2024 ballot measure.10Board of State and Community Corrections. Proposition 47 Grant Program
Proposition 57: Parole and Juvenile Transfer
Proposition 57, the Public Safety and Rehabilitation Act of 2016, expanded early release opportunities and changed how juveniles end up in adult court.11California Department of Corrections and Rehabilitation. Prop. 57: The Public Safety and Rehabilitation Act of 2016 – Frequently Asked Questions
On parole, anyone convicted of a non-violent felony can be considered for parole after serving the full term of their primary offense. The “primary offense” is the longest single sentence imposed by the court, excluding enhancements and consecutive terms.12California Department of Corrections and Rehabilitation. Proposition 57 Nonviolent Parole Review Process Someone sentenced to four years for the base crime plus three years for an enhancement becomes eligible for a parole hearing at four years rather than seven. Parole is not automatic; the Board of Parole Hearings decides whether the person still poses an unreasonable risk. The measure also broadened the authority of the California Department of Corrections and Rehabilitation to award sentence-reduction credits for good behavior, program completion, education, and career training.
The juvenile change ended “direct file,” the practice that let prosecutors unilaterally charge a minor in adult court. Only a juvenile court judge can now transfer a minor to adult court, after a hearing that weighs the minor’s maturity, rehabilitation potential, and the circumstances of the offense.11California Department of Corrections and Rehabilitation. Prop. 57: The Public Safety and Rehabilitation Act of 2016 – Frequently Asked Questions
Felony Murder Narrowed by SB 1437
California’s traditional felony murder rule allowed anyone involved in a qualifying felony that resulted in a death to be charged with murder, even without intent to kill and even if someone else caused the death. Senate Bill 1437, signed in 2018, narrowed that exposure.
After SB 1437, a participant in a qualifying felony where a death occurs is only liable for murder if they actually killed the victim, aided the killing with the intent to kill, or were a major participant in the underlying crime and acted with reckless indifference to human life.13California Legislative Information. SB-1437 Accomplice Liability for Felony Murder The law also restricted murder liability under the natural and probable consequences doctrine, which had let prosecutors charge murder based on a foreseeable killing arising from a different planned crime.
SB 1437 included a retroactive resentencing process, now codified in Penal Code section 1172.6. People already convicted of felony murder or murder under the natural and probable consequences theory can petition to vacate the conviction if they could not have been convicted under the narrower rules; if they qualify, the court resentences them on any remaining charges.13California Legislative Information. SB-1437 Accomplice Liability for Felony Murder It remains one of the most active areas of criminal appellate litigation in the state.
What Happened to Cash Bail
Bail reform in California took a longer path. Senate Bill 10, signed in 2018, would have eliminated cash bail and replaced it with a Pretrial Assessment Services system categorizing arrestees as low, medium, or high risk.3California Legislative Information. SB-10 Pretrial Release or Detention: Pretrial Services Governor Brown signed it, calling it a step toward a fairer system.14Governor of California. Governor Brown Signs Legislation to Revamp California’s Bail System, Protect Public Safety The bail industry put a veto referendum on the November 2020 ballot as Proposition 25, and voters rejected SB 10 roughly 56 percent to 44 percent, repealing the law.
The courts then reshaped bail from a different direction. In March 2021, the California Supreme Court ruled in In re Humphrey that conditioning pretrial freedom solely on whether someone can afford bail is unconstitutional. Before setting bail, a judge must consider the arrestee’s actual ability to pay. If pretrial detention is necessary to protect public safety or ensure appearance at trial, the judge must find by clear and convincing evidence that no less restrictive alternative exists.15Justia Law. In re Humphrey Cash bail still exists, but wealth-based detention is far harder to justify, and many counties have adopted pretrial risk-assessment tools and supervised release programs in response.
Automatic Record Clearing Under SB 731
Clearing a California criminal record used to require filing a petition, paying fees, and navigating a process many eligible people never completed. The Clean Slate Act, Senate Bill 731, signed in 2022, made relief automatic for qualifying convictions.
Starting in July 2023, the California Department of Justice reviews statewide criminal justice databases every month to identify people eligible for automatic relief. For misdemeanor and infraction convictions dating back to 1973, relief is automatic once the person has completed their sentence or probation without revocation. For felony convictions from 2005 onward, the record is automatically sealed four years after the person completes all terms of incarceration, probation, and supervision, provided they pick up no new felony convictions during that period.16California Legislative Information. SB-731 Criminal Records: Relief
The law excludes serious felonies, violent felonies, and offenses requiring sex offender registration, and anyone with an active supervision record or pending charges is ineligible until those are resolved.16California Legislative Information. SB-731 Criminal Records: Relief For everyone else, the law removes a barrier to employment and housing without requiring a lawyer or paperwork.
The 2024 Rollback: Proposition 36
By the early 2020s, public frustration with organized retail theft and open drug use produced a backlash against Proposition 47. In November 2024, California voters passed Proposition 36, which rolled back parts of Proposition 47 without fully repealing it.17Legislative Analyst’s Office. Proposition 36
On theft, the $950 threshold itself did not change. Shoplifting and petty theft remain misdemeanors for a first or second offense under that amount. A person with two or more prior convictions for qualifying theft crimes, however, now faces felony charges on a new theft, carrying up to three years in county jail or state prison.9California Legislative Information. California Penal Code 459.5 – Shoplifting Felony sentences for theft or property damage can also be lengthened by up to three years when three or more people commit the crime together, aimed at smash-and-grab robberies.
On drugs, Proposition 36 created a new “treatment-mandated felony.” A person caught possessing drugs such as fentanyl, heroin, cocaine, or methamphetamine with two or more prior drug-related convictions can be charged with this new offense rather than a misdemeanor. They then choose between completing a court-approved treatment program, which results in dismissal, or facing up to three years in prison.18California Senate. Criminal Laws Created or Amended by Proposition 36 Courts must also now warn anyone convicted of drug sales that if their conduct results in a death, they can be charged with murder.
Because Proposition 36 reverses some of the incarceration reductions that generated Proposition 47’s savings, it also reduces funding flowing into the Safe Neighborhoods and Schools Fund, meaning less state money for the mental health treatment, substance abuse programs, and victim services Proposition 47 was designed to support.17Legislative Analyst’s Office. Proposition 36 The practical result is a system that still looks substantially different from the one in place before 2011, with lower felony exposure for most first-time property and drug offenses, narrower felony murder liability, limited cash bail, automatic record relief, and a judge-only path from juvenile to adult court, but with sharper penalties waiting for people who keep coming back.