In California, juvenile detention means a minor is held in juvenile hall, or sent home under court-set conditions, while a juvenile court case is pending. Once an arresting officer delivers a minor to probation, a probation officer decides first. A judge or referee then decides at a detention hearing. The law starts from release and allows detention only on specific grounds.
A parent may get a call that a son or daughter was arrested and taken to juvenile hall, and may then want to know who decides whether the child comes home, how soon a judge sees the case, and what the next few days look like. Another question is whether this follows the child into school and beyond. This page walks through California's detention rules in the order a case usually meets them. It then covers what comes after detention, including adult-court transfer and sealing.
What California Juvenile Detention Means Under the Law
Juvenile court jurisdiction starts with Welf. & Inst. Code § 602. Generally, a minor between 12 and 17 years old, inclusive, who violates a state law, a federal law, or a city or county ordinance defining a crime is within the juvenile court's jurisdiction. Curfew ordinances based only on age are excluded. The court "may adjudge the minor to be a ward of the court." A ward of the court is a young person whose care and supervision the juvenile court has taken over because of an offense.
A child under 12 comes within § 602 only for the offenses its text lists: - murder - forcible rape - forcible sodomy - forcible oral copulation - forcible sexual penetration
The case begins with a petition. A petition is the formal document that asks the juvenile court to declare the minor a ward. It is not a criminal complaint.
Detention is not adult incarceration. It is a temporary hold while the case is pending. When a court orders it, § 636 names "the juvenile hall or other suitable place designated by the juvenile court." The California Courts self-help guide on the juvenile justice court process notes that, unlike adult court, "there is no 'bail.'" For a wider view of each stage, see the juvenile court process.
Grounds for Detaining a Minor in California
A peace officer who takes a minor into temporary custody under Welf. & Inst. Code § 625 may do several things under § 626, including releasing the minor, giving a written notice to appear before the probation officer, or taking the minor before the probation officer. Once the minor is delivered to the probation officer, the first detention decision belongs to that officer. Under Welf. & Inst. Code § 628, the officer must immediately investigate. The officer must then immediately release the minor to a parent, legal guardian or responsible relative. The exception is when staying home is contrary to the minor's welfare and one or more of these conditions exists: - continued detention is a matter of immediate and urgent necessity to protect the minor, or reasonable necessity to protect another person or their property - the minor is likely to flee the court's jurisdiction - the minor has violated a juvenile court order
The court applies a similar test at the detention hearing. Under Welf. & Inst. Code § 635, the court must order release unless one of these appears: the minor violated a court order, escaped from a juvenile court commitment, presents the same urgent-necessity or protection concern, or is likely to flee. The court must also order release unless a prima facie showing has been made that the minor comes within § 601 or § 602. A prima facie showing is enough evidence, on its face, to support that.
Under Welf. & Inst. Code § 636, the court may then order detention for no more than 15 judicial days and must enter its findings of fact in the court's records. Before ordering detention, it must also find that continuing in the home is contrary to the minor's welfare. The gravity of the alleged offense may be considered alongside other factors. A detention decision may not rest solely on the county where the minor lives.
Home supervision is the middle path. The minor goes home but lives under conditions the court or probation sets, sometimes with electronic monitoring. Section 636 says that when the criteria of § 628.1 apply, the court shall place the minor on home supervision, also for up to 15 judicial days. Whether those criteria fit a particular child depends on the facts and the court.
The Detention Hearing: Timing and What the Court Decides
The clock starts at custody. Under Welf. & Inst. Code § 631, a minor must generally be released within 48 hours of being taken into custody, excluding nonjudicial days, unless a petition or a criminal complaint is filed in that time. This does not apply when the minor willfully misrepresents being 18 or older. The California Courts information sheet for parents notes that "the courts are closed on Saturdays, Sundays, and holidays."
A detention hearing is the first court appearance for a detained minor. A judge or referee decides whether the minor stays held, goes home, or goes home on supervision. Under Welf. & Inst. Code § 632, a detained minor must generally be brought before the court "before the expiration of the next judicial day" after the petition is filed. A different deadline applies when the minor was taken into custody without a warrant for a misdemeanor not involving violence, a threat of violence, or possession or use of weapons, and is not on probation or parole. In that case the hearing must be held no later than 48 hours after custody, excluding nonjudicial days, once a petition has been filed. If those limits are missed, § 632 says the minor "shall be released from custody." California Rules of Court, rule 5.752 also sets time limits for detention hearings.
At the hearing, § 635 directs the court to examine the minor, a parent or guardian, or others with relevant knowledge. It must hear evidence that the minor, the parent or guardian, or counsel wants to present. Under rule 5.760, the court also considers the probation officer's written report. Before it detains the minor, the court must determine whether available services could prevent the need for further detention, and it must state the evidence it relied on.
The results include: - release to a parent or guardian - home supervision - continued detention in juvenile hall or another suitable place the court designates
None of these decides whether the allegations are true. That question belongs to the jurisdiction hearing, also called the adjudication hearing, which comes later.
A Minor's Rights During Questioning and Detention
California has a specific rule for police questioning. Welf. & Inst. Code § 625.6 states: "Prior to a custodial interrogation, and before the waiver of any Miranda rights, a youth 17 years of age or younger shall consult with legal counsel in person, by telephone, or by video conference. The consultation may not be waived."
Custodial interrogation means questioning while the youth is under police control. Courts must consider any failure to follow this rule when deciding whether the youth's statements can be used. A willful violation can bear on an officer's credibility.
There is an exception. The rule does not govern admissibility when the officer reasonably believed the information was necessary to protect life or property from an imminent threat, and the questions were limited to what was reasonably necessary to get it. The rule also does not require a probation officer to comply in the normal performance of duties under §§ 625, 627.5 or 628.
Other rights come from the California Courts page If a youth is arrested. A child "can make at least 2 phone calls within 1 hour of being arrested." One call goes to a parent, guardian, relative or boss, and the other to a lawyer. Police must also tell the parent when the child is locked up, where the child is, and what rights the child has.
These rights are stated here as the law states them. How they apply to a given interview depends on the facts.
From Detention to Disposition: The Stages of a California Juvenile Case
Not every arrest reaches a courtroom. According to the self-help arrest page, probation may offer diversion instead. Diversion is a voluntary program that resolves the matter without a court case, and it may involve classes, counseling or community service. If the child finishes, "they will not have to go to court," and the contract can last 6 months. Programs differ by county.
Otherwise, the district attorney decides whether to file a petition alleging the minor comes within § 602.
Pretrial conferences. These hearings check whether the case can be settled. Attorneys can also raise evidence issues or file motions at this stage.
The jurisdiction hearing. The self-help court-process guide calls this hearing a trial. A judge decides whether the youth did what is alleged. There is no jury. The district attorney must prove the allegations beyond a reasonable doubt. If the court finds them true, the petition is sustained. A sustained petition is not a conviction.
The disposition hearing. If the petition is sustained, the court holds a disposition hearing to decide what happens next. The options include probation, which is court-ordered supervision in the community under conditions. They also include group homes, probation camps and ranches, and a secure youth treatment facility. The self-help guide describes a secure youth treatment facility as one "for youth who are found to have committed the most serious offenses." The youth lives there for a set time, attends school, and receives services under a court-approved plan. California's Division of Juvenile Justice no longer operates; the self-help guide notes it closed on June 30, 2023.
Which disposition fits depends on the facts and the court. Specific charges are covered in juvenile crimes and California juvenile assault charges.
Transfer to Adult Court in California
Under Welf. & Inst. Code § 707, the district attorney or other appropriate prosecuting officer may move to transfer a minor from juvenile court to a court of criminal jurisdiction in two situations: - the minor was 16 or older when he or she allegedly committed an offense listed in § 707(b) or any other felony - the minor was 14 or 15 when he or she allegedly committed a § 707(b) offense, but was not apprehended before juvenile court jurisdiction ended
The motion must be made before jeopardy attaches.
A transfer hearing is the juvenile court hearing that decides the motion. The court first orders probation to prepare a report on the minor's behavioral patterns and social history. That report includes any written or oral statement offered by the victim under § 656.2.
To transfer the case, the court must find "by clear and convincing evidence that the minor is not amenable to rehabilitation while under the jurisdiction of the juvenile court." In making that decision, it must consider criteria the statute lists in subparagraphs (A) through (E).
A transfer hearing happens only if the prosecuting officer makes the motion. If the court orders transfer, the case moves to a court of criminal jurisdiction. More detail is in when a juvenile is tried as an adult.
Juvenile Records and Sealing in California
A juvenile record does not erase itself at 18. Sealing is a court order that restricts access to the records of a juvenile case, and California provides several routes to it.
Under Welf. & Inst. Code § 786, if a person satisfactorily completes probation or informal supervision under § 654.2, the court "shall order the petition dismissed" and seal the related records. Satisfactory completion is deemed to have occurred if the person has no new findings of wardship or conviction for a felony or a misdemeanor involving moral turpitude during the supervision or probation, and has not failed to substantially comply with the reasonable orders that are within their capacity to perform (§ 786(c)). The court may not dismiss and seal under § 786 if the petition was sustained on a § 707(b) offense committed at 14 or older, unless that finding was dismissed or reduced to a misdemeanor or to a lesser offense not listed in § 707(b) (§ 786(d)). Once the petition is dismissed, the arrest and proceedings "shall be deemed not to have occurred." The person may answer inquiries from employers or schools accordingly. The court also sets a date for destroying the records. Where a sustained petition bars firearm possession until age 30, that destruction date is the person's 33rd birthday.
Under Welf. & Inst. Code § 786.5, the probation department seals arrest and related records when a juvenile satisfactorily completes a diversion or supervision program. This applies when the program was used instead of filing a petition.
Under Welf. & Inst. Code § 781, the person or the county probation officer may petition for sealing five years or more after juvenile court jurisdiction ends, or at any time after the person has reached 18. The court orders sealing if it finds that the person has not been convicted of a felony or of a misdemeanor involving moral turpitude since jurisdiction ended and that rehabilitation has been attained to its satisfaction. A petition to seal a record of a § 707(b) offense committed at 14 or older may be filed only in the circumstances § 781(a)(1)(D) lists, unless that offense was dismissed or reduced to a misdemeanor, and a record for which Penal Code § 290.008 requires registration cannot be sealed.
Welf. & Inst. Code § 787 is one of several provisions that allow limited access to sealed records; it covers data reporting and approved research, and personally identifying information may not be released in either case.
School discipline, employment and other consequences can follow a juvenile case. Those consequences depend on the facts and on rules this page does not cover. Immigration consequences are governed by immigration law this page does not cover.
If You'd Like to Talk Through Your Child's Case
Detention moves on a timeline measured in judicial days, and each step builds on the one before it. This page explains California's general rules. It does not address any one child's charge or facts.
To request a consultation about a child's juvenile case, contact Juvenile Justice Defense Group.
