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Florida Involuntary Commitment

Marchman Act vs. Baker Act in Florida: Key Differences

Understanding which statute applies to addiction, substance abuse, and mental health crises—and how Robinson & Casey can help you navigate the right path.

By Richard J. Casey III, Esq. · Published September 19, 2026

Marchman Act vs. Baker Act in Florida: Key Differences

Florida has two distinct involuntary commitment statutes, and they serve different purposes. The Marchman Act (Fla. Stat. § 397.675) targets substance abuse and addiction, while the Baker Act (Fla. Stat. § 394.463) addresses mental illness and imminent danger. Understanding which law applies to your situation is essential—the choice determines your immediate next steps, who can file a petition, and what happens after.

If you're trying to determine which Florida involuntary commitment law fits your loved one's situation—whether it's addiction, mental health crisis, or both—reach out to discuss your circumstances. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

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Overview: Two Different Florida Commitment Laws

Both statutes authorize involuntary commitment, but they address fundamentally different conditions and populations. The Marchman Act is Florida’s tool for substance abuse and addiction; the Baker Act is the state’s framework for mental health crises. Confusion between the two is common because both involve court petitions or holds and temporary detention, but the legal grounds, who can initiate action, and the procedures differ significantly.

Think of it this way: if your loved one’s primary crisis is addiction, the Marchman Act applies. If the primary crisis is mental illness with imminent danger, the Baker Act applies. The distinction matters because using the wrong statute wastes time and may not achieve the intervention you’re seeking.

What the Marchman Act Addresses

The Marchman Act is designed specifically for individuals struggling with substance abuse or addiction—alcohol, drugs, or both. It allows family members, healthcare providers, law enforcement, and other specified persons to petition the court for involuntary assessment and treatment.

The statute focuses on addiction as the primary condition requiring intervention. Importantly, substance abuse alone is sufficient grounds for a Marchman Act petition. You do not need to prove that your loved one also has a mental illness. The National Institute on Drug Abuse recognizes addiction as a disease, which supports the medical and legal rationale for involuntary assessment and treatment.

A Marchman Act petition rests on showing that the person is abusing or dependent on drugs or alcohol and either refuses or is unable to seek treatment voluntarily. The court then reviews the petition and may order the person to undergo evaluation and treatment.

What the Baker Act Addresses

The Baker Act is designed for individuals experiencing a mental health crisis or mental illness. It requires that the person pose a substantial threat of harm to self or others, or be unable to care for themselves due to mental illness.

The Baker Act can be initiated by law enforcement, healthcare providers, judges, and certain other authorized persons. Critically, it does not always require a court petition first. Law enforcement or a healthcare provider can issue an emergency hold (often called a “Baker Act hold”) for up to 72 hours without court involvement initially. Court review typically follows the hold.

The Baker Act does not apply to substance abuse as a primary condition. However, substance abuse can co-occur with mental illness, and if both are present and mental illness is the driver of imminent danger, the Baker Act may apply.

Key Procedural Differences

The entry point for each statute is fundamentally different, and this shapes your immediate options.

Marchman Act: You file a petition with the court. A judge reviews the petition and may issue an order for evaluation and treatment. The petitioner must establish grounds related to substance abuse and the person’s inability or unwillingness to seek treatment. A hearing typically occurs within a defined timeframe after the petition is filed.

Baker Act: An emergency hold can begin without a prior court order. Law enforcement or a healthcare provider can initiate the hold based on their assessment that the person meets criteria. The initial hold lasts up to 72 hours. If the person meets criteria for involuntary examination or admission, they may be held for up to 5 days with possible extensions. Court involvement typically comes after the initial hold.

In practice, this means: if you believe your loved one needs involuntary assessment for addiction, you’ll likely file a Marchman Act petition with the court. If you believe they’re in immediate danger due to mental illness, you can call law enforcement or a healthcare provider to request a Baker Act evaluation, which can begin without a court order.

Who Can File or Initiate Each

Marchman Act: Family members, healthcare providers, law enforcement, and other specified persons can petition the court directly.

Baker Act: Law enforcement, healthcare providers, judges, and certain mental health professionals can initiate a hold. Family members typically cannot directly initiate a hold but can request evaluation through law enforcement or a healthcare provider.

Both statutes allow concerned parties to take action, but the entry point differs. With the Marchman Act, you can file a petition yourself or work with an attorney. With the Baker Act, you typically contact law enforcement or a healthcare provider to request an evaluation.

Not sure what your next step is?

Talk it through with our team — the first consultation is free, confidential, and carries no obligation.

Grounds and Legal Standards

The legal standards for each statute are distinct and do not overlap.

Marchman Act: The petitioner must show the person is abusing or dependent on drugs or alcohol, and either refuses or is unable to seek treatment voluntarily. The focus is on addiction and the person’s unwillingness or inability to pursue voluntary treatment.

Baker Act: The initiator must show the person has a mental illness and poses a substantial threat of harm to self or others, or is unable to care for themselves due to mental illness. The focus is on mental illness and imminent danger or grave disability (inability to care for oneself).

A person cannot be committed under the Marchman Act for mental illness alone, nor under the Baker Act for substance abuse alone. The two statutes serve different populations and legal grounds.

Duration and Next Steps

Marchman Act: An initial court order may authorize a period of assessment and treatment. The court determines the duration based on the petition and hearing. Treatment may be inpatient or outpatient, depending on the circumstances and the court’s order.

Baker Act: An initial hold is up to 72 hours. If the person meets criteria for involuntary examination or treatment, they may be admitted for up to 5 days, with possible extensions. The facility conducting the evaluation must determine whether the person meets criteria for continued involuntary treatment.

Both statutes can lead to longer-term treatment arrangements. If your loved one requires ongoing decision-making support or supervision after an involuntary commitment, guardianship may become necessary.

When to Consider Each

Use this framework to identify which statute may apply to your situation:

Choose Marchman Act if: Your loved one is struggling with substance abuse or addiction, refuses treatment, and you believe court-ordered evaluation and treatment is necessary.

Choose Baker Act if: Your loved one is experiencing a mental health crisis, poses a danger to themselves or others, or cannot care for themselves due to mental illness.

Overlap situations: If someone has both a substance abuse disorder and a mental illness, the appropriate statute depends on which condition is the primary driver of the crisis and imminent danger. An attorney familiar with both statutes can help you make this determination.

Working With an Attorney

An attorney familiar with both the Marchman Act and Baker Act can help you determine which applies to your situation and guide you through the petition or hold process. The choice between these statutes has significant legal and practical consequences for your loved one’s care and rights.

An attorney can also advise on related matters. If long-term decision-making authority is needed after an involuntary commitment, guardianship may be appropriate. The interplay between involuntary commitment and guardianship is complex, and professional guidance ensures you’re taking the right steps for your loved one’s protection and care.

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Frequently Asked Questions

Can I use the Marchman Act to commit someone for mental illness alone?

No. The Marchman Act applies only to substance abuse and addiction. If mental illness is the primary condition, the Baker Act is the appropriate statute.

Can family members initiate a Baker Act hold?

Family members typically cannot directly initiate a Baker Act hold, but they can request evaluation through law enforcement or a healthcare provider, who can then assess whether a hold is warranted.

How long does a Baker Act hold last?

An initial emergency hold lasts up to 72 hours. If criteria are met, the person may be admitted for involuntary examination or treatment for up to 5 days, with possible extensions.

Do I need a court order to start a Marchman Act commitment?

Yes. The Marchman Act process begins with filing a petition with the court. A judge reviews the petition and decides whether to issue an order for evaluation and treatment.

What happens if someone meets criteria for both statutes?

If someone has both substance abuse and mental illness, the statute that applies depends on which condition is the primary driver of the crisis. An attorney can help you determine which is most appropriate.


If you’re facing a situation where you need to determine whether the Marchman Act or Baker Act applies to your loved one—whether the crisis centers on addiction, mental health, or both—reach out to discuss your specific circumstances. Families in South Florida and across Florida navigate these decisions regularly, and understanding which law applies is the first step toward getting your loved one the intervention they need.

The information on this website is for general informational purposes only and does not constitute legal advice or create an attorney-client relationship. Results in prior cases do not guarantee similar outcomes in future matters. Please consult a licensed Florida attorney for advice specific to your situation.

Critical Distinction

The Marchman Act addresses substance abuse and addiction; the Baker Act addresses mental illness and imminent danger. Using the wrong statute can delay help. If you're unsure which applies to your situation, Robinson & Casey can clarify the correct legal pathway.

Marchman Act vs. Baker Act at a Glance

Marchman Act

Applies to substance abuse and addiction. Allows family members and certain professionals to petition for involuntary assessment, stabilization, and treatment. Focuses on addiction-related harm and the need for intervention.

Baker Act

Applies to mental illness and imminent danger to self or others. Law enforcement, medical professionals, and judges can initiate holds. Designed for acute psychiatric crises and mental health emergencies.

Who Can Petition

Marchman: family members, physicians, mental health professionals, law enforcement. Baker: primarily law enforcement, medical personnel, and judges; family members typically cannot directly initiate but can request evaluation.

Duration & Next Steps

Marchman: initial assessment up to 5 days; can lead to stabilization and treatment orders. Baker: initial hold up to 72 hours; focuses on psychiatric evaluation and crisis stabilization.

How Robinson & Casey Helps

Petition Preparation

We draft and file Marchman Act petitions for involuntary commitment for addiction, emergency temporary guardianship orders, and other guardianship filings with precision and care.

Legal Guidance

We explain which statute applies to your family's situation and walk you through the process, timelines, and what to expect at each stage.

Direct Representation

Robinson & Casey handles Marchman Act attorney services and guardianship matters—plenary, limited, emergency temporary, and mental health guardianship—across South Florida and statewide.

Urgent Response

When addiction or mental health crises demand immediate action, we move quickly to file emergency petitions and protect your loved one's welfare.

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