Marchman Act Evidence: What Proves Drug Use in Florida

Under Florida’s Marchman Act, proof of drug use has to show more than a bad week. The court asks whether there is a good faith reason to believe a person is impaired by substance use and has lost the power of self-control over it. Dated observations, medical and police records, drug test results, and statements from people who saw the behavior are the main kinds of evidence. This guide explains what each one shows, how to gather it, and where its limits are. It is general information, not advice about your own case.

What a Florida Court Looks for When Drug Use Is Alleged

A Florida court decides whether a person meets the criteria in involuntary admission criteria. The statute requires a good faith reason to believe the person is substance abuse impaired, or has a substance use disorder and a co-occurring mental health disorder. It also requires that, because of this, the person has lost the power of self-control with respect to substance abuse.

The second part of the test looks at judgment and safety. The person must be unable to appreciate the need for services, or be likely to neglect themselves or harm themselves or others. Fla. Stat. § 397.675 reads: “(b) Without care or treatment, is likely to suffer from neglect or refuse to care for himself or herself; that such neglect or refusal poses a real and present threat of substantial harm to his or her well-being; and that it is not apparent that such harm may be avoided through the help of willing, able, and responsible family members or friends or the provision of other services, or there is substantial likelihood that the person has inflicted, or threatened to or attempted to inflict, or, unless admitted, is likely to inflict, physical harm on himself, herself, or another.” The statute also says that mere refusal to get services does not, by itself, show a lack of judgment. Fla. Stat. § 397.675 reads: “(b) Without care or treatment, is likely to suffer from neglect or refuse to care for himself or herself; that such neglect or refusal poses a real and present threat of substantial harm to his or her well-being; and that it is not apparent that such harm may be avoided through the help of willing, able, and responsible family members or friends or the provision of other services, or there is substantial likelihood that the person has inflicted, or threatened to or attempted to inflict, or, unless admitted, is likely to inflict, physical harm on himself, herself, or another.” So your evidence should show more than a refusal.

The court looks at the whole pattern, not one incident. Tie each piece of proof to one of these criteria. As you gather material, ask three questions. What substance use is happening? How is it affecting the person and others? Why is the person unlikely to get help without a court order?

Firsthand Observations and Dated Incidents

Specific, dated observations give the court facts it can test. Write down what you saw or heard, when it happened, where you were, and who else was there. Describe signs in plain terms, such as slurred speech, unsteady walking, missed appointments, or angry outbursts.

Avoid conclusions. Write “her speech was slurred and she couldn’t find her keys,” not “she was high.” Keep a running log and write each entry close to the event, while your memory is fresh.

Separate what you saw from what others told you. Secondhand reports, called hearsay, are not the same as your own observation. Label each one in the petition.

Family testimony also matters at the hearing. The court must hear relevant evidence, including testimony from family members who know the person’s prior history and how it relates to the current condition. Testimony is taken under oath and recorded. See hearing evidence rules.

Medical, Emergency, and Treatment Records

Medical records can show substance use, but privacy law controls who can get them and how. Emergency visits, hospital admissions, detox stays, and treatment records may document an overdose, withdrawal, or injury linked to use.

Federal law protects these records. Under federal patient records law, records of substance use disorder programs that are conducted, regulated, or directly or indirectly assisted by any federal department or agency may not be used or disclosed against the patient in any civil, criminal, administrative, or legislative proceeding conducted by any federal, state, or local authority. The exception is a court order or the patient’s consent. A court may order disclosure only after finding good cause. The court must find that other ways of getting the information are not available or would not be effective. See court orders for records.

Florida’s psychotherapist-patient privilege also applies. It covers communications made for diagnosis or treatment of mental or emotional conditions, including alcoholism and other drug addiction. But the privilege does not cover communications relevant to proceedings to compel hospitalization, when the therapist has reasonable cause to believe hospitalization is needed. See psychotherapist privilege.

Request records in writing. Keep the originals and a copy of each request.

Police, Court, and Public Records

Police and court records can confirm events with dates and official details. Arrest reports, citations, DUI reports, and incident reports may show drug or alcohol involvement. Prior court dockets with substance-related charges can also help build a timeline.

Request copies from the agency or clerk that created the record. Note the date you asked and the date you received it.

An arrest or charge records one event. Its weight in a petition depends on how it connects to the statutory criteria. Several incidents, placed in date order, can show a pattern of impaired judgment or harm.

For Miami-Dade cases, the Miami-Dade Clerk mental health court page directs people seeking involuntary alcohol or drug abuse treatment to the Clerk’s Office Probate Court for adults. Petitions and related court records under this law are confidential. See court records confidentiality.

Drug Test Results and Chain of Custody

A drug test result shows the substance detected, the date the sample was collected, and the lab that tested it. Keep the lab report and any collection paperwork. Note the date and time on each one.

Chain of custody is the written record of who collected, handled, and tested a sample. Gaps in that record can weaken a result. If you don’t have that record, say so in the petition rather than guessing.

The court may order drug tests at the hearing. A single result is one data point. A series of results over time shows more about a pattern. A negative test does not, by itself, show that use is absent. Present each result with its date and its limits.

Household, Work, Financial, and Third-Party Evidence

Evidence of daily impact shows how use affects the person and the people around them. Missed work, lost jobs, unpaid bills, missing money or property, damage at home, and strained relationships with children all count. Write down dates and amounts for each.

Texts, voicemails, photos, and videos can show a pattern. Save them in original form. Don’t crop, edit, or delete them, and keep the date data on each file. Make a backup copy.

Statements from neighbors, coworkers, teachers, or others with direct knowledge can help too. Get each witness’s full name and contact details. Write down what that person personally saw or heard, soon after you speak with them.

Keep copies of everything you share with anyone, and never alter original files.

Organizing the Evidence Into a Clear Timeline

A single timeline in date order is the simplest way to organize proof. Put every record, observation, and incident in one place. Give each entry a date, a source, and a one-line description.

Mark each item by type: firsthand observation, record, or report from someone else. This helps the court weigh each one correctly. Separate facts from opinions. “He missed three shifts in March” is a fact. “He is out of control” is an opinion, so describe what it is based on.

Remove exaggeration. A petition built on specific, checkable details is easier to evaluate than one built on broad claims. A clear timeline also helps you answer questions about dates accurately.

Under Florida’s verification law, a written declaration reads: “Under penalties of perjury, I declare that I have read the foregoing document and that the facts stated in it are true.” A person who knowingly makes a false declaration is guilty of a third-degree felony. Fla. Stat. § 92.525 reads: “(2) A written declaration means the following statement: “Under penalties of perjury, I declare that I have read the foregoing [document] and that the facts stated in it are true,” followed by the signature of the person making the declaration, except when a verification on information or belief is permitted by law, in which case the words “to the best of my knowledge and belief” may be added.”

Who Can File and What the Petition Must Show

For an adult, Florida law lets a spouse or legal guardian, any relative, a service provider, or an adult with direct personal knowledge file a petition. That adult must know the person’s impairment and prior course of assessment and treatment. See who may petition.

For an adult respondent, a petition for involuntary treatment services may be filed by the respondent’s spouse or legal guardian, any relative, a service provider, or an adult who has direct personal knowledge of the respondent’s substance abuse impairment and prior course of assessment and treatment. It must state their relationship and the respondent’s attorney, if known. Its factual allegations must give the reason you believe the person is impaired and has lost self-control. They must also give the reason the person has caused harm, or is likely to, or refuses care because judgment is so impaired that the person is incapable of appreciating the need for care. See petition contents.

A report from a qualified professional who examined the person within 30 days before filing may accompany the petition. If the person was not assessed or refused, the petition must say so.

A respondent also has the right to counsel at every stage. See jurisdiction and counsel rules.

J.C. v. State, 293 So. 3d 627 (Fla. 5th DCA 2020) See J.C. v. State. How that applies to your case depends on the facts and the county.

Talking Through Your Situation With Robinson Casey

Gathering this material while you worry about someone you love is hard. Many families reach this point in a crisis they didn’t choose. Your records may be scattered across hospitals, police agencies, and employers. You may not know yet whether a court petition is the right step.

Robinson Casey focuses on Marchman Act petitions and guardianship matters, serving families across South Florida and statewide. Richard J. Casey III, Esq. is the responsible lawyer for this page.

Frequently Asked Questions