
Marchman Act
Marchman Act Rights in Florida: Legal Protections Explained
Understand your rights and protections under Florida's involuntary commitment law for substance use disorder.
By Richard J. Casey III, Esq. · Published October 02, 2026
Marchman Act Rights in Florida: Legal Protections for Individuals Committed
When someone you care about struggles with substance abuse and won’t seek help, Florida’s Marchman Act offers a legal path to involuntary assessment and treatment. But what rights does that person have once a petition is filed? Understanding the protections built into the law is essential—whether you’re considering filing a petition or facing one yourself.
If you're researching what happens when someone is committed under the Marchman Act—whether you're considering filing a petition or facing one yourself—our attorneys can walk you through your rights and options. Reach out to discuss your situation. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

What Is the Marchman Act and Why It Matters
The Marchman Act is Florida’s civil law that allows involuntary assessment and stabilization for people with severe substance abuse impairment. Unlike criminal commitment, this is a health intervention: the goal is assessment and treatment, not punishment. The law exists because addiction affects decision-making capacity. Research from the National Institute on Drug Abuse shows that substance use disorders alter brain function in ways that impair judgment and self-control, making it difficult or impossible for someone to recognize they need help or to stop using on their own.
Families and concerned parties use the Marchman Act when someone cannot or will not seek treatment despite serious consequences—job loss, health crises, legal trouble, or danger to themselves or others.
Can You Have Someone Involuntarily Committed in Florida?
Yes. Under Florida Statutes Chapter 397, specifically § 397.675, the Marchman Act provides the legal mechanism for involuntary commitment. But commitment is not automatic—a court must determine that specific criteria are met.
Who can petition: – Family members – Healthcare providers – Law enforcement – The Department of Children and Families (DCF) – Judges
What must be proven: The petitioner must show, by clear and convincing evidence, that three conditions exist:
- Substance abuse impairment: a pattern of pathological use substantially affecting health, safety, or social and occupational functioning
- Lack of self-control: the person cannot or will not stop use despite consequences
- Likelihood of serious harm: without intervention, substance abuse will cause death, serious bodily injury, or severe mental or physical deterioration
All three must be demonstrated. A court will not commit someone based on family concern alone.
What Rights Do People Have Under the Marchman Act?
The Marchman Act process includes significant due process protections. The person subject to a petition has the right to:
- Notice: be informed of the petition and the hearing date
- Be heard: appear in court and present evidence or testimony
- Legal representation: have an attorney present and advocate for them
- Cross-examine witnesses: question the petitioner’s evidence and challenge claims
- Independent evaluation: request an assessment by a neutral professional if they dispute the petitioner’s findings
- Appeal: challenge the court’s decision if they believe the law was misapplied or the evidence was insufficient
- Confidentiality: have medical and legal records protected under privacy laws
These protections exist because the law balances the state’s interest in intervening when someone is in danger against an individual’s right to refuse unwanted medical treatment. The court, not the petitioner, makes the final decision based on evidence presented at a hearing.
How Long Can You Be Held on the Marchman Act in Florida?
Initial involuntary assessment and stabilization lasts up to 5 days. During this period, the person is evaluated at a designated facility to confirm substance abuse impairment and assess immediate medical and safety risks.
After 5 days, the court must hold a hearing. If the judge finds that the three criteria continue to be met, the court can order continued treatment. Extended commitment periods are possible but require ongoing judicial oversight—the person retains the right to petition for release or modification at any time if circumstances change or if they believe the criteria are no longer met.
Treatment duration depends on clinical progress and individual needs, not arbitrary timelines. The facility and the court monitor the person’s response to treatment and adjust the plan accordingly.
The Marchman Act Process and Procedural Protections
Understanding the steps helps clarify where rights come into play:
Ex parte petition: A family member, healthcare provider, or other authorized person files a petition with the court. At this stage, the person being petitioned against is not yet notified—the court reviews the petition to determine if there’s probable cause to proceed.
If approved: Law enforcement or emergency medical services locates and transports the person to an assessment facility.
Mandatory hearing: Within a specified timeframe (typically 5 days), a court hearing must occur. The petitioner presents evidence. The person can attend, present witnesses, cross-examine the petitioner’s witnesses, and argue against the petition.
Burden of proof: The petitioner must prove all three criteria by clear and convincing evidence—a high legal standard. The judge does not simply defer to the petitioner’s request.
Court order: The judge issues an order based on the evidence presented. If criteria are not met, the person is released. If they are met, the court orders assessment and stabilization (or continued treatment if already underway).
Not sure what your next step is?
Talk it through with our team — the first consultation is free, confidential, and carries no obligation.
Criteria for Involuntary Commitment Under the Marchman Act
The three-part test is the foundation of the law. Courts apply it strictly because involuntary commitment is a serious restriction on liberty.
Substance abuse impairment means more than occasional use. It’s a documented pattern—medical records, prior treatment, arrests, behavioral deterioration—showing that substance use substantially harms health, safety, or the person’s ability to work or maintain relationships.
Lack of self-control means the person has tried to stop or reduce use and cannot, or has been warned of serious consequences and continues anyway. This criterion recognizes that addiction impairs the brain’s capacity for self-regulation.
Likelihood of serious harm requires evidence that without intervention, the substance abuse will result in death, serious bodily injury, or severe mental or physical deterioration. This is not speculative; it’s grounded in the person’s current trajectory and history.
Demonstrating Substance Abuse Impairment
Petitioners build their case with specific, factual evidence. This might include:
- Medical records showing substance-related diagnoses or emergency visits
- Prior treatment attempts and relapses
- Criminal arrests or DUI convictions related to substance use
- Documented behavioral changes witnessed by family, employers, or healthcare providers
- Financial deterioration or loss of employment
- Specific incidents showing danger to self or others
The court weighs this evidence carefully. Isolated incidents or occasional use do not meet the threshold. The pattern must be substantial and ongoing, and it must demonstrate impairment serious enough to justify state intervention.
What Happens During Assessment and Stabilization
Once a person is transported to an assessment facility, several things occur:
- Medical and psychiatric evaluation: staff assess the type and extent of substance use, withdrawal risk, and immediate medical needs
- Stabilization: this may include detoxification support, medication, crisis counseling, or psychiatric care
- Documentation: the facility records findings and prepares a clinical report for the court hearing
- Ongoing rights: during this period, the person retains the right to communicate with family and counsel, receive appropriate medical care, and prepare their defense for the hearing
The facility is not a jail. It’s a treatment setting, and the person’s rights to safety, dignity, and legal due process continue.
The Right to Appeal or Challenge a Marchman Act Order
If the court orders commitment, the person is not without recourse. They can:
- Appeal the decision: if the court misapplied the law or the evidence was insufficient, an appeal challenges that error
- Petition for modification or release: if circumstances change—the person completes treatment, enters a voluntary program, or new evidence emerges—they can ask the court to modify or terminate the order
- Request an independent evaluation: to support an appeal or modification request
Legal representation is critical during appeals. An attorney can identify legal errors, present new evidence, and advocate for the person’s release or modification of the commitment.
When Someone Faces a Marchman Act Petition
If you or a loved one is the subject of a Marchman Act petition, remember this: the court’s role is to determine whether the legal criteria are truly met, not to punish or override personal choice without cause. You have the right to contest the petition, present your own evidence, and have legal counsel explain the process and protect your interests at the hearing.
Many people in this situation benefit from having an attorney review the petition, advise them on their rights, and represent them at the hearing. An attorney can also help you understand whether the criteria have been properly met and what options exist for challenging or modifying the order.
If you're researching what happens when someone is committed under the Marchman Act—whether you're considering filing a petition or facing one yourself—our attorneys can walk you through your rights and options. Reach out to discuss your situation. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

Frequently Asked Questions
How long does a Marchman Act hearing take?
A hearing typically lasts 30 minutes to an hour, depending on the complexity of the case and the amount of evidence presented.
Can the person refuse to attend the hearing?
No. If they are in custody at an assessment facility, they are brought to court. Refusal to appear does not prevent the hearing from proceeding, though their absence weakens their ability to present a defense.
What happens if the person is released after the hearing?
If the court finds that the criteria are not met, the person is released immediately. If they are already at an assessment facility, they are discharged.
Can someone be committed multiple times under the Marchman Act?
Yes, if new petitions are filed and the criteria are met each time. However, repeated petitions may face scrutiny, and the person retains the right to contest each one.
Does a Marchman Act commitment go on a person’s criminal record?
No. This is a civil proceeding, not a criminal one. The commitment does not result in a criminal conviction, though medical records documenting the commitment are part of the person’s health history.
If you’re researching what happens when someone is committed under the Marchman Act—whether you’re considering filing a petition or facing one yourself—our attorneys can walk you through your rights and options. Many families and individuals in this situation reach out to understand the process and protect their interests. Contact us to discuss your situation.
Time Matters in Marchman Act Cases
The Marchman Act process moves quickly. If you are considering a petition or have been served with one, immediate legal guidance can protect your rights and ensure proper procedures are followed.
Key Protections Under the Marchman Act
Right to Notice and Hearing
The person named in a petition has the right to be notified and to appear at a hearing before any involuntary commitment order is entered. Hearings typically last 30 minutes to an hour, depending on case complexity.
Right to Legal Representation
You have the right to an attorney throughout the Marchman Act process. Legal counsel protects your interests and ensures all procedures comply with Florida law.
Right to Challenge the Petition
The respondent can contest the allegations, present evidence, and cross-examine witnesses. The court must find clear and convincing evidence before ordering involuntary commitment.
Right to Appeal
If an order is entered, you retain the right to appeal within the time limits set by Florida law. An attorney can advise you on appeal options and next steps.
How Robinson & Casey Protects Your Rights
Focused Practice in Marchman Act Law
Robinson & Casey focuses exclusively on Marchman Act petitions and guardianship matters. We understand Florida's involuntary commitment process and the rights it protects.
Thorough Case Preparation
We review all petition documents, gather evidence, and prepare a strong defense or response to protect your interests before the hearing.
Representation for Families and Respondents
Whether you are filing a petition or responding to one, we represent your interests throughout the process and advise you on all available options.
Available Across South Florida and Statewide
We serve families in Miami-Dade, South Florida, and throughout Florida, providing accessible legal guidance when you need it most.
