What Is a Juvenile Petition? What Happens at Each Step

A juvenile petition is the formal document a prosecutor files in juvenile court to start a delinquency case against a minor. It names the child, describes what the child is alleged to have done and which law is involved, and asks the court to take authority over the case. It is not an adult criminal complaint, and a finding on it is not a conviction.

A parent who has just learned that a child was arrested, or who is holding court papers with the word "petition" on them, is trying to answer a few urgent questions at once: whether the child can come home, which hearing comes first, how long this lasts and what it means for school and the years ahead. This guide walks through each stage in order, from the first police contact to record sealing, using California's rules as the worked example and noting where other states differ.

Before You Start: What a Juvenile Petition Is and What It Is Not

A petition is the document that asks the juvenile court to find that a minor (a person under 18) falls under its authority. A delinquency petition alleges the minor broke a law. A dependency petition, which alleges abuse or neglect by a parent, belongs to a separate child-welfare system and is not covered here.

Juvenile court uses its own words. According to the federal juvenile case flow overview, a delinquency petition asks the court to adjudicate the youth delinquent, making the youth a ward of the court, language that "differs from that used in the criminal court system (where a person is convicted and sentenced)."

In California, Welf. & Inst. Code § 602 generally covers a minor between 12 and 17, inclusive, who violates a state or federal law or a local ordinance defining crime (other than a curfew based solely on age), except as § 707 provides. A minor under 12 is covered only for the serious offenses § 602(b) lists: murder and specified forcible sex offenses.

Three facts orient everything that follows: whether the child was arrested or only cited, whether the child is detained right now, and whether a petition has been filed yet. Each changes which step comes next. The broader juvenile court process follows the same sequence.

Step 1: Arrest, Citation, or Referral — How a Case Reaches Juvenile Court

A case can begin in several ways, including an arrest with the child held, a citation with the child released to a parent or guardian, or a referral from a school or other agency. Police make the arrest, but the decision to file a petition generally rests with the probation department or the prosecutor.

At intake, the federal overview explains, the intake officer reviews whether the evidence supports the allegation, then decides whether to dismiss the case, handle it informally or request formal court action. A petition does not follow every arrest.

Diversion means a program that resolves the matter without a petition being filed or adjudicated, which may involve conditions such as restitution, school attendance, drug counseling or a curfew. Eligibility and terms depend on the jurisdiction.

Questioning has its own California rule. Under Welf. & Inst. Code § 625.6, before a custodial interrogation and before any waiver of Miranda rights, a youth 17 or younger must consult with a lawyer in person, by phone or by video, and that consultation cannot be waived. The statute's rule on admitting statements does not apply when an officer reasonably believed the information was needed to protect life or property from an imminent threat and limited the questions to that, and it does not require a probation officer to comply in the normal performance of the officer's duties under certain sections.

Step 2: The Detention Hearing — Whether the Minor Stays or Goes Home

A detention hearing is the court hearing at which a judge decides whether a child taken into custody stays detained or goes home.

Before any hearing, California's Welf. & Inst. Code § 628 directs the probation officer to release the minor immediately to a parent, guardian or responsible relative unless staying home is contrary to the minor's welfare and at least one condition exists: detention is urgently necessary to protect the minor or reasonably necessary to protect another person or property, the minor is likely to flee, or the minor violated a juvenile court order.

Timing is set by statute. Under § 631, a minor generally must be released within 48 hours of custody, excluding nonjudicial days, unless a petition (or a criminal complaint) is filed in that time; § 631(b) sets its own conditions for certain warrantless arrests on nonviolent misdemeanors. Under § 632, a detained minor must be brought before a judge or referee before the end of the next judicial day after the petition is filed; for a warrantless arrest on a nonviolent misdemeanor with no weapon, where the minor is not on probation or parole, the limit is 48 hours from custody, excluding nonjudicial days. A minor not brought before the court in time must be released.

At the hearing, under §§ 635 and 636, the court hears from the minor, a parent or guardian and counsel, and must order release unless the minor violated a court order, escaped a commitment, is likely to flee, or detention is urgently necessary for the minor's protection or reasonably necessary to protect another person or property, and staying home is contrary to the minor's welfare. Detention orders last up to 15 judicial days. The court may instead order home supervision, with or without electronic monitoring, regardless of the county where the minor lives. Other states set their own standards; the federal overview notes a hearing must be held within a statutory period, generally within 24 hours. In re Gault, 387 U.S. 1 (1967), held that, in proceedings to determine delinquency which may result in commitment to an institution in which the juvenile's freedom is curtailed, the child and parents must be notified of the right to counsel.

Step 3: Filing the Petition and What It Contains

In California, a petition to declare a minor a ward under § 602 is filed by the prosecuting attorney. It names the minor, describes each alleged offense and cites the law allegedly violated. In juvenile court these are allegations in a petition rather than charges in the adult sense.

In re Gault held that, in proceedings to determine delinquency which may result in commitment to an institution in which the juvenile's freedom is curtailed, due process requires notice of the charges to the child and parents sufficiently in advance of the hearing.

Filing triggers the formal court process. Some jurisdictions still allow informal handling after this point, and the federal overview notes that failing an informal agreement can return a case to formal processing. Petition format and wording vary by state; California's process is the example here, and other states follow their own rules.

Step 4: The Adjudication (Jurisdiction) Hearing — How the Court Decides the Facts

The adjudication hearing, called a jurisdiction hearing in California, is where the court decides whether the allegations in the petition are true. Witnesses testify and evidence is presented, much as at a trial, but the result is a finding, not a verdict.

In re Winship, 397 U.S. 358 (1970), requires proof beyond a reasonable doubt when a juvenile is charged with an act that would constitute a crime if committed by an adult. In re Gault held that, absent a valid confession, a determination of delinquency and an order of commitment to a state institution cannot be sustained without sworn testimony subjected to the opportunity for cross-examination. According to the federal overview, a judge makes the decision in nearly all adjudicatory hearings, though some states give the youth a right to a jury.

If the court finds the petition not true, the petition is dismissed. If it finds the petition true, the case moves to disposition. A true finding is a juvenile adjudication, not a criminal conviction.

Step 5: Disposition — What the Court Orders After a True Finding

Disposition is the stage where the court decides what happens after a true finding. Before the hearing, the probation department prepares a report on the youth, family supports and available programs; the federal overview notes the court may also order psychological evaluations. The prosecutor and the youth may present their own recommendations.

Options include informal or formal probation (supervision in the community under court conditions), placement outside the home, or a secure facility. A probation order may carry added requirements such as drug counseling, weekend confinement or restitution, and review hearings monitor the youth's progress. Declaring a minor a ward means the court takes a supervisory role over the minor's conduct and welfare. California's Division of Juvenile Justice no longer operates, so any description of commitment there is out of date.

A disposition can affect school, work and immigration; those consequences depend on the facts and on rules this page does not cover, and immigration consequences are governed by immigration law this page does not cover. The record may later qualify for sealing, as described below.

When a Case Can Be Transferred to Adult Court

A transfer hearing is the proceeding in which the juvenile court decides whether a minor's case moves to adult criminal court. In California it is not automatic: under Welf. & Inst. Code § 707, the prosecutor may move to transfer a minor who was 16 or older at the time of an offense listed in § 707(b) or any other felony, or an individual who was 14 or 15 at the time of a § 707(b) offense but was not apprehended before juvenile court jurisdiction ended. The motion must be made before jeopardy attaches.

The court then orders a probation report on the minor's behavioral patterns and social history, including any victim statement. To transfer, the court must find by clear and convincing evidence that the minor is not amenable to rehabilitation while under juvenile court jurisdiction, considering the criteria § 707 lists.

Transfer matters because a conviction in adult court is a criminal conviction with adult consequences. Kent v. United States, 383 U.S. 541 (1966), concerned a transfer under the District of Columbia's Juvenile Court Act and held that the hearing must measure up to the essentials of due process and fair treatment. Other states use different ages, offense lists and procedures, including prosecutor filing in some states, per the federal overview. More detail appears in when a juvenile is tried as an adult.

The Usual Sequence, and When a Case Gets More Complicated

Not knowing how long this will last is its own strain on a family. The usual sequence runs: arrest or referral, probation intake, detention hearing if the child is held, petition filed, first appearance, pre-hearing motions, adjudication, disposition. A case can resolve at any stage, and a child may move between detention and release.

Contested facts and evaluations

Disputed evidence, expert witnesses, mental health evaluations or several co-respondents (other minors in the same case) add time.

A transfer motion

A § 707 motion adds a probation report and a separate hearing before adjudication can go forward.

Deadlines elsewhere

California's detention deadlines appear in Step 2. Every state sets its own detention hearing deadline by statute.

Record Sealing: What Happens to the Juvenile Record After the Case Ends

Sealing is a court-ordered process that closes records from ordinary access. A juvenile record is not automatically sealed at 18, and in California eligibility depends on how the case ended.

Under Welf. & Inst. Code § 786, when a person satisfactorily completes informal supervision under § 654.2, probation under § 725, or a term of probation, the court must dismiss the petition and seal the records held by the court, law enforcement, probation and the Department of Justice, except that under § 786(d) it may not do so if the petition was sustained for an offense listed in § 707(b) committed at age 14 or older, unless that finding was dismissed or reduced to a misdemeanor or to a lesser offense not listed in § 707(b). The arrest and proceedings are then deemed not to have occurred, and the person may answer employers and schools accordingly. Sealed records receive a destruction date, which is the person's 33rd birthday if the record includes a finding barring firearm possession until 30.

Under § 786.5, probation must seal records after satisfactory completion of a diversion or supervision program offered instead of a petition, with law enforcement and the Department of Justice sealing within 60 days of notice. Under § 781, a person may petition for sealing five or more years after jurisdiction ends or at any time after turning 18; the court seals if it finds no later felony or misdemeanor involving moral turpitude and rehabilitation to its satisfaction. For an offense listed in § 707(b) committed at age 14 or older that resulted in wardship, § 781(a)(1)(D) allows a petition only after the person has completed probation supervision for it and reached the age the subparagraph sets (18, or 21 for a person committed to the state division it names), unless the offense was dismissed or reduced to a misdemeanor; and § 781(a)(1)(F) bars sealing such a record where the person is required to register under Penal Code § 290.008. Under § 787, sealed records remain accessible for data reporting and approved research without personally identifying information. Other states use their own sealing rules, and some consequences can persist depending on the facts.

Discussing the Next Step in Your Child's Case

A petition sets a chain of hearings in motion, and each one, from detention through disposition, turns on particular dates, findings and statutes. This page explains how the process works in general; it does not address any particular child's case.

To request a consultation about a child's juvenile case, contact Juvenile Justice Defense Group.