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Updated June 8, 2006, 1:27 p.m. ET
Susan Polk calls psychic detective to testify at her murder trial


Prosecutors say Susan Polk murdered her husband with a paring knife.
FULL COVERAGE: The Susan Polk Trial
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MARTINEZ, Calif. — Accused killer Susan Polk claims she is a maliciously maligned psychic who was abused by her therapist husband, and is now being abused by the justice system for her decision to represent herself at trial against a first-degree murder charge.

Polk even called a psychic detective to the stand Wednesday to bolster her claim that psychics — and fairies — are real.

But a prosecutor introduced evidence in court Wednesday suggesting to jurors that Polk is no medium, but merely a textbook example of someone who suffers from delusions of persecution and resorts to violence against the object of their obsession.

"Can you describe for the jury what a delusional disorder is?" Assistant District Attorney Paul Sequeira asked defense witness Dr. Linda Barnard, an expert in intimate-partner battering, who testified that Polk suffered from post-traumatic stress disorder as a result of her abusive 30-year relationship with the victim, Dr. Felix Polk.

Barnard said individuals with delusional disorders may seem out of touch with reality, have false beliefs and hallucinate. She referred the prosecutor to the psychiatric reference book, Diagnostic and Statistical Manual of Mental Disorders, fourth edition, or DSM-IV.

Sequeira had a copy of the manual handy and flipped to a passage on "persecutory type delusional disorder."

He read out loud in a calm voice: "This subtype applies when the central theme of the delusion involves the person's belief that he or she is being conspired against, cheated on, spied on, followed, poisoned or drugged, maliciously maligned, harassed."

Sequeira paused to ask Barnard if that fit her understanding of a persecutory-type delusional disorder.

Barnard agreed it did.

Sequeira continued: "Small slights may be exaggerated The focus of the delusion is often some injustice that must be remedied by legal action ... And the affected person may engage in repeated attempts to obtain satisfaction by appeal to the courts."

He paused again, reading the final sentence with gravitas: "Individuals with persecutory delusions are often resentful and angry and may resort to violence against those they believe are hurting them."

Barnard agreed it was an accurate description of the disorder.

"Thanks. No further questions," Sequeira said.

Barnard was not asked if the condition fit Polk's behavior, but the implication was clear.


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