The McMartin Preschool investigation began in 1983 after an allegation concerning a child at a preschool in Manhattan Beach. It grew into a prolonged prosecution involving many children and several adults. No defendant was convicted.
Content and archive note
This page discusses allegations involving children and failures in investigative practice. It omits graphic descriptions and paraphrases historical statements. Allegations are not presented as established facts, and terminology reflects later understanding of suggestive interviewing and memory.
Case at a glance
The case became an early and influential example of what was then described as a multi-victim, multi-offender investigation. Much of the prosecution depended on statements obtained from young children and on medical interpretations then offered as evidence of abuse. Later analysis challenged both the interview techniques and the diagnostic value attributed to those examinations.
The investigation also became associated with claims of organized ritual activity, hidden spaces and a broad conspiracy. Searches did not establish the extraordinary claims. The case is now frequently examined in discussions of moral panic, confirmation bias, forensic interviewing and the risk that repeated or leading questions can affect children's accounts.
Events before the trial
In August 1983, a parent reported to police that her child had been abused by a part-time preschool aide. Authorities arrested the aide in September. Prosecutors initially declined to proceed because they considered the available evidence insufficient.
Police subsequently sent a letter to roughly 200 families whose children had attended the preschool. It described possible forms of abuse and encouraged parents to question their children. News coverage rapidly expanded the story, including speculation about organized criminal activity for which evidence had not been established.
Community response and religious context
Families met in community settings, including a local church, while the allegations were receiving intense attention. A later author who had studied the case criticized the church for making space available to accusers and campaigners. That assessment remains an attributed interpretation rather than proof of institutional direction.
The archive's editorial view is narrower: religious gatherings may have provided places where worried families exchanged claims, and existing beliefs about supernatural evil may have made ritual-conspiracy allegations appear plausible to some participants. The available material summarized here does not establish that a church organized or directed the investigation.
For background on the religious concept referenced in some allegations, see the site's article about Satan in Christian belief.
Interviews and examinations
Hundreds of children were interviewed by a child-services organization. By spring 1984, large numbers had been classified as possible victims. Medical examinations did not produce the kind of clear physical evidence that investigators expected in substantiated cases, but some clinicians relied on tests and interpretations whose forensic value was later rejected or heavily disputed.
Records and later reviews describe interviews that included leading questions, repeated prompts, social pressure and positive reinforcement for answers consistent with the investigators' theory. Children were sometimes told that other children had already disclosed wrongdoing. Such practices can make it difficult to distinguish a child's independent memory from an account shaped during questioning.
The range of allegations
The interviews produced an increasingly expansive set of claims. In non-graphic summary, children were reported to have described:
- organized ritual activity attributed to teachers and other adults;
- costumes, staged events and recordings involving children;
- harm to animals and implausible supernatural events;
- travel away from the preschool by car, aircraft or balloon without parents noticing;
- secret rooms, trapdoors and underground routes;
- public figures and many unrelated educators taking part in a large conspiracy.
Investigators did not corroborate the broad conspiracy narrative. In particular, no functioning tunnel system connecting the preschool to abuse locations was established. Later excavation identified older disturbed ground and filled trenches predating the preschool building; interpretations of those findings remain contested. The related website page examines the tunnel claim in more detail.
Reading historical allegations responsibly
A claim recorded in an interview is not automatically a verified event. Reliable evaluation asks how the interview was conducted, whether independent evidence exists, whether accounts changed after repeated questioning and whether alternative explanations were tested.
Part 2: The prosecution and trial
The next essay follows the case into court and summarizes the proceedings without reproducing graphic testimony.
References in the archived essay
- Debbie Nathan, “The Ritual Sex Abuse Hoax,” The Village Voice, 12 January 1990. An archived copy was linked through the National Center for Reason and Justice.
- Debbie Nathan and Michael Snedeker, Satan's Silence, BasicBooks, 1995, p. 170.
- Paul and Shirley Eberle, The Abuse of Innocence: The McMartin Preschool Trial, Prometheus Books, 1993.
- Paul Carpenter, “Keep McMartin Case in Mind as Hysteria Looms,” The Morning Call, 19 May 2002, p. B1.
- R. A. Wilson, Chaos and Beyond: The Best of Trajectories.