Asphyxia homicides in Denmark 1992-2016.

Area of Science:

• Forensic Pathology
• Legal Medicine
• Victimology

Background:

• Asphyxia deaths, particularly strangulation, present diagnostic challenges in forensic investigations.
• Understanding demographic patterns and autopsy findings in homicidal asphyxia is crucial for death investigations.

Purpose of the Study:

• To analyze autopsy findings in 250 cases of homicide by asphyxia over 25 years in Denmark.
• To identify key indicators of strangulation in homicidal deaths to aid future investigations.

Main Methods:

• Retrospective analysis of 250 homicide cases involving asphyxia.
• Detailed examination of autopsy findings, with a focus on strangulation mechanisms.
• Statistical analysis of victim and offender demographics, and injury patterns.

Main Results:

• Asphyxia homicides showed demographic biases: adult females were frequent victims, while male victims were often children. Offenders' demographics also showed patterns (female offenders targeting children, male offenders targeting partners).
• Manual and ligature strangulation were the predominant mechanisms (81.6%). Petechial hemorrhages were common but could be obscured by decomposition.
• Skin lesions and hemorrhages were frequent on the face/neck. Fractures of the laryngo-hyoid complex were common, especially in manual strangulation and related to victim age.

Conclusions:

• Autopsy findings, including petechial hemorrhages and laryngo-hyoid fractures, are vital for diagnosing homicidal strangulation.
• Demographic data and injury patterns provide context for interpreting asphyxia deaths.
• These findings enhance the ability to interpret evidence in complex forensic cases involving strangulation.