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Lanterman–Petris–Short Act

Lanterman–Petris–Short Act is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Lanterman–Petris–Short Act rather than just read about it. In short: The Lanterman–Petris–Short (LPS) Act (Chapter 1667 of the 1967 California Statutes, codified as Cal. Welf & Inst.

Lanterman–Petris–Short Act — main illustration
Lanterman–Petris–Short Act — illustration

Key takeaways

  • Lanterman–Petris–Short Act belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Lanterman–Petris–Short Act to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Lanterman–Petris–Short Act from memory before moving on to harder problems.

Reference excerpt

The Lanterman–Petris–Short (LPS) Act (Chapter 1667 of the 1967 California Statutes, codified as Cal. Welf & Inst. Code, sec. 5000 et seq.) regulates involuntary civil commitment to a mental health institution in the state of California. It has been described as a "landmark" act which established the precedent for modern mental health commitment procedures in the United States. The bipartisan bill was co-authored by California State Assemblyman Frank D. Lanterman (R) and California State Senators Nicholas C. Petris (D) and Alan Short (D), and signed into law in 1967 by Governor Ronald Reagan. The Act went into full effect on July 1, 1972. It cited seven articles of intent:

To end the inappropriate, indefinite, and involuntary commitment of mentally disordered persons, people with developmental disabilities, and persons impaired by chronic alcoholism, and to eliminate legal disabilities; To provide prompt evaluation and treatment of persons with serious mental disorders or impaired by chronic alcoholism; To guarantee and protect public safety; To safeguard individual rights through judicial review; To provide individualized treatment, supervision, and placement services by a conservatorship program for gravely disabled persons; To encourage the full use of all existing agencies, professional personnel and public funds to accomplish these objectives and to prevent duplication of services and unnecessary expenditures; To protect mentally disordered persons and developmentally disabled persons from criminal acts. The Act in effect ended all hospital commitments by the judiciary system, except in the case of criminal sentencing, e.g., convicted sexual offenders, and those who were "gravely disabled", defined as unable to obtain food, clothing, or housing. It did not, however, impede the right of voluntary commitments. It expanded the evaluative reach of psychiatrists and created provisions and criteria for holds. Prior to 1987 it was assumed that the Act allowed involuntary treatment for those who were detained under an initial three-day hold (for evaluation and treatment) and a subsequent fourteen-day hospitalization (for those people declared after the three-day hold to be dangerous to themselves or others or gravely disabled). However, in the 1987 case of Riese v. St. Mary’s Hospital and Medical Center, the California Court of Appeal declared that these people had the right to exercise informed consent regarding the use of antipsychotic drugs, except in an emergency, and if they rejected medication "a judicial determination of their incapacity to make treatment decisions" was required before they could be involuntarily treated. This case was a class action suit brought in the name of person Eleanor Riese by the California ACLU. Eleanor Riese's story is depicted in the movie 55 Steps.

LPS evaluation, detention, and conservatorship process Under the LPS Act, individuals can be detained into a locked psychiatric facility in the following process:

5150 hold Under California Welfare and Institutions Code (WIC) 5150, an individual can be involuntarily placed in a locked psychiatric facility for an evaluation for up to 72 hours. Any peace officer or specific individuals authorized by a county government may place the hold. Three criteria apply – the individual is assessed to be a danger to themselves, a danger to others, or "gravely disabled". Per WIC 5008, grave disability is defined as an individual's lack of ability, due to their mental illness, to provide for their food, clothing, or shelter. In the case of children, it is the inability to use food, clothing, or shelter even if it is supplied. It is not uncommon for police to be the party who places them on the 5150 hold and then takes the individual to the hospital for further assessment. Over the next 72 hours, the hospital or psychiatrist must determine the individual's need for further locked psychiatric detainment. If the individual's condition clears up and they are no longer a danger to others or themselves or gravely disabled, they are released from the hospital. If, however, they remain a danger to others or themselves or continue to be gravely disabled, the hospital/psychiatrist may then request a 5250 hold to thereby keep the individual in the hospital beyond the 72-hour limit of the 5150 hold.

In popular culture Largely because many American movies and television programs are primarily produced in California, usage of the term 5150 has spread beyond its original location and user population. An album of the same name by the California hard rock band Van Halen was named directly for the code section, and several derivative uses followed. MGK’s 2022 album Mainstream Sellout features a song named for the term.

5250 hold If, after a 72-hour hold, an individual is deemed to still be a danger to others or themselves, or is gravely disabled, WIC 5250 permits an individual to be involuntarily held (in a locked psychiatric hospital) for an additional 14 days. Unlike a 5150 hold, a 5250 hold requires that the individual served receive a court hearing within 4 days of being served to ascertain the validity of the hold. Court hearings are often held in the hospital. Individuals are provided an attorney and a county court officer reviews the evidence for the hold presented by the hospital, hears the argument of the client and their attorney, and decides whether or not to uphold the 5250. Just as with the 5150 hold, during the 5250 hold, the individual is continually being assessed by psychiatric staff. Again, if the individual is (at any time) deemed to be no longer a danger or gravely disabled, they are then released from the hospital. According to section 5257 of the act, the individual must be released after 14 days, unless: they agree to further treatment on a voluntary basis, they are certified for an additional 14 days of intensive treatment, they are certified for an additional 30 days of intensive treatment, they are the subject of a conservatorship (commonly known as a Temporary LPS Conservatorship) petition, or they are the subject of a petition for post-certification treatment of a dangerous person.

… excerpt ends here. Continue reading the full article.

Illustrations

Lanterman–Petris–Short Act illustration

Worked examples

Example 1 — a first encounter with Lanterman–Petris–Short Act

Start with the simplest possible case. Write down what Lanterman–Petris–Short Act claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Lanterman–Petris–Short Act before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Lanterman–Petris–Short Act ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Lanterman–Petris–Short Act

In research
Lanterman–Petris–Short Act appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Lanterman–Petris–Short Act in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Lanterman–Petris–Short Act is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1972 in American law, 1972 in California, California statutes, so understanding it makes those chapters shorter.
In everyday life
Look for Lanterman–Petris–Short Act outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Lanterman–Petris–Short Act in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Lanterman–Petris–Short Act means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Lanterman–Petris–Short Act out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lanterman–Petris–Short Act in simple terms?

The Lanterman–Petris–Short (LPS) Act (Chapter 1667 of the 1967 California Statutes, codified as Cal. Welf & Inst.

Why does Lanterman–Petris–Short Act matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Lanterman–Petris–Short Act?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Lanterman–Petris–Short Act.

Tags

  • 1972 in American law
  • 1972 in California
  • California statutes
  • Deinstitutionalization in the United States
  • Disability in California
  • Involuntary commitment
  • Mental health law in the United States
  • United States state disability legislation

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