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Extreme emotional disturbance: Legal frameworks and considerations for forensic evaluation
E Lea Johnston1, Christina P Gliser2, Jonathan P Haney3
1University of Florida Research Foundation Professor, Professor of Law, University of Florida Levin College of Law, Gainesville, Florida, USA.
Extreme emotional disturbance (EED) is a partial defense to murder that varies significantly across US jurisdictions. This study maps EED definitions and provides guidance for forensic evaluators navigating these legal differences.
Area of Science:
- Forensic Psychology
- Criminal Law
- Legal Medicine
Background:
- Extreme emotional disturbance (EED) is recognized as a partial defense in some US murder cases.
- Significant variation exists in how EED is defined and applied across different legal jurisdictions.
- Empirical research and practical guidance for forensic mental health professionals regarding EED are limited.
Purpose of the Study:
- To provide a comprehensive overview of the current legal landscape of EED defenses in the United States.
- To translate complex legal concepts of EED into terminology understandable for forensic evaluators.
- To analyze sample cases, highlighting jurisdictional differences in EED defense and evidence admissibility.
Main Methods:
- Systematic review of statutes and case law defining EED across US jurisdictions.
- Development of a conceptual framework translating legal EED criteria into clinical constructs.
- Case study analysis comparing legal and clinical approaches to EED.
Main Results:
- A detailed map illustrating the diverse definitions and scope of EED defenses nationwide.
- Clarification of legal EED terminology for forensic mental health professionals.
- Identification of key discrepancies in EED defense application and evidence rules between jurisdictions.
Conclusions:
- This research offers the first contemporary analysis of EED defenses in the US.
- The findings provide essential guidance for forensic evaluators in assessing EED claims.
- Understanding jurisdictional variations is crucial for effective legal and clinical practice in EED cases.
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