Forensic Medicine — Lesson 5 Unit Control: Key Questions

1. Subject of Forensic Medicine: Goals and Objectives

• Apply medical science to legal investigations
• Establish facts relevant to civil and criminal proceedings
• Protect the rights of individuals in medico-legal contexts

• Conduct forensic medical examinations of living persons, corpses, and material evidence
• Determine the cause, manner, and time of death
• Assess bodily injuries (nature, mechanism, severity)
• Identify unknown persons
• Provide expert testimony in courts and pre-trial investigations
• Train medical personnel in forensic responsibilities

2. Main Types of Forensic Medical Examinations

1. Examination of living persons — injury assessment, sexual offenses, age determination, health status, disability
2. Examination of corpses — cause of death, manner of death, identification
3. Examination of material evidence — biological fluids (blood, semen, saliva), hair, tissues, bones
4. Examination of medical documents — medical records, case histories, to assess quality of care
5. Commission (complex) examinations — multi-expert, multi-disciplinary reviews
6. Situational examinations — reconstructing the circumstances of an event

3. Structure of the Center for Forensic Medicine

4. Basis for Forensic Examinations

• Ruling (Resolution) of an investigator, prosecutor, or court — mandatory legal basis
• Court order — in civil proceedings
• Written request — in limited cases (e.g., some administrative matters)

5. Documentation of Forensic Medical Examination

• Forensic Medical Autopsy Report (Act) — official document with full conclusions

• Forensic Medical Certificate (Conclusion) — issued to the directing authority

• Laboratory Analysis Report — specific to the type of examination

• Expert Opinion (Conclusion) — signed by the expert, submitted to court
• Expert Testimony — verbal statement during court proceedings

6. Structure of Forensic Examination Findings and Conclusions

Part I — Introduction (Preamble)

• Date, place, time of examination
• Name and qualifications of the expert
• Legal basis (ruling number, issuing authority)
• Questions posed to the expert
• List of materials submitted
• Warning regarding liability for false conclusions

Part II — Research (Descriptive) Part

• Detailed objective description of findings
• Methods used
• Laboratory results
• External examination findings
• Internal examination (autopsy) findings

Part III — Conclusions

• Answers to each question posed by the investigation/court
• Written in accessible language
• Scientifically justified
• Expert's signature and seal

7. Who Organizes and Conducts Inspection of the Scene?

• Investigator/prosecutor — organizes and leads the process
• Operative staff (criminal investigators)
• Forensic medical expert or doctor-specialist — mandatory at scenes involving a corpse
• Forensic criminalist — trace evidence, fingerprints
• Witness-attesting persons (понятые) — civilian witnesses (legally required in some systems)
• Translator, if needed

8. Basic Principle and Purpose of Scene Inspection

• Timeliness — scene must be examined as soon as possible
• Completeness — no detail, however insignificant, may be omitted
• Objectivity — findings recorded exactly as observed, without interpretation
• Methodical approach — systematic, stage-by-stage investigation
• Technical documentation — photography, sketches, protocols before any object is moved
• Preservation of evidence — minimal disturbance until recorded

9. Methods and Stages of Scene Inspection

Methods:

• Concentric — from the periphery to the center
• Eccentric — from the center outward
• Sectoral (grid) — area divided into sectors
• Linear (frontal) — strip-by-strip search

Stages:

1. Preparatory stage — securing the scene, gathering participants, preliminary survey
2. General (static) stage — overview, photography, sketching without disturbing objects; establishing the overall picture
3. Detailed (dynamic) stage — close examination, moving objects, collecting samples and traces; examination of the corpse in situ
4. Final stage — packaging evidence, completing the protocol, obtaining expert samples

10. Objects of Forensic Examinations

11. Mandatory Types of Forensic Examinations

1. Establishing the cause of death
2. Determining the nature and severity of bodily harm
3. Determining the mental state of a suspect or accused (in cases involving insanity pleas)
4. Determining the mental or physical state of a victim (if relevant to the case)
5. Determining the age of a suspect, accused, or victim (when documents are absent)

12. Responsibilities of a Medical Expert/Specialist When Examining a Corpse at the Detection Site

1. Arriving promptly upon notification
2. Documenting the position and pose of the corpse as found
3. Assessing early and late postmortem changes (rigor mortis, livor mortis, decomposition) to estimate time of death
4. Describing external injuries — location, character, dimensions, direction
5. Assisting in identifying the deceased (signs, documents, clothing)
6. Describing the surroundings relevant to the body (blood pooling, drag marks)
7. Collecting biological samples from the scene if needed
8. Answering preliminary questions of the investigator at the scene (time of death, nature of injuries, position consistent with scene?)
9. Participating in the protocol — signing the inspection record
10. NOT moving or disturbing the body without investigator authorization
11. Issuing a death certificate if applicable (in non-suspicious deaths)

13. Forensic Death Classification

By Category (Manner of Death):

By Type of Violent Death:

• Homicide — killed by another person
• Suicide — self-inflicted
• Accident — unintentional external cause
• Undetermined — insufficient evidence to classify

By Degree of Violence (post-Soviet classification):

• Category I: Violent death
• Category II: Non-violent (natural) death
• Category III: Sudden death

By Relationship to Medical Care:

• Hospital death vs. Pre-hospital death

14. Stages of Dying (Thanatogenesis)

15. Early and Late Corpse Phenomena and Their Forensic Value

Early Phenomena (first 24–48 hours):

Late Phenomena (after 48–72 hours):

16. Features of Forensic Study of Unknown Persons and Dismembered Corpses

Unknown Persons:

• Full external description — height, weight, age estimation, body build, hair/eye color
• Fingerprinting — comparison with criminal databases
• Dental records (odontology) — comparison with dental charts
• DNA profiling — comparison with databases or relatives
• Clothing and personal items — labeling, provenance
• Tattoos, scars, deformities — documented photographically
• Radiology — old fractures, prostheses, dental work
• Facial reconstruction — if only skull is present

Dismembered Corpses:

• Collection and documentation of all parts — diagram of where each part was found
• Determine if all parts belong to one person (sex, race, age consistency; DNA matching)
• Minimum number of individuals — determined from non-duplicated bones
• Nature of dismemberment — tool marks (saw, knife, hatchet) — reveals weapon type and skill
• Signs of vital vs. postmortem dismemberment — presence of hemorrhage around cut sites
• Identify the cause of death — injuries on remaining parts
• Identification — all methods above applied

17. Definition of "Sudden Death"

Death occurring unexpectedly, apparently from natural (non-violent) causes, in a person who appeared to be in good or satisfactory health, within a short period (typically within 24 hours) of the onset of symptoms, without prior diagnosis of a life-threatening condition.

• Apparently natural cause (most often cardiovascular: coronary artery disease, aortic dissection, pulmonary embolism)
• No external violence
• Unexpected by the individual and observers
• Requires forensic examination to exclude foul play
• Time criterion varies by jurisdiction: 1–24 hours after symptom onset is most widely used; forensic pathologists may use "within 6 hours" for cardiac sudden death

18. What is "Injury" (Повреждение)?

Any disruption of the anatomical integrity or physiological function of tissues, organs, or systems of the body caused by the action of an external factor (mechanical, thermal, chemical, electrical, radiation, biological, or psychogenic).

• Disruption of structure or function
• Caused by an external factor (distinguishes injury from disease)
• The external factor may be physical, chemical, biological, or psychological

19. What is "Injury" and Classification of Injury (Травматизм)

Classification of Injury (Traumatism) by Social Setting:

Classification by Nature of Injury-Causing Agent:

• Mechanical
• Thermal (burns, frostbite)
• Chemical
• Electrical
• Radiation
• Combined (polytrauma)

20. Medical Classification of Injuries

By Severity (standard medico-legal classification used in CIS countries):

By Type of Tissue Disruption:

• Open injuries — skin integrity broken (wounds, lacerations, stab wounds)
• Closed injuries — skin intact (contusions, fractures, dislocations, internal injuries)

By Mechanism / Causing Agent:

• Mechanical — blunt force, sharp force, firearms
• Thermal — burns, scalds, frostbite
• Chemical — acids, alkalis, corrosives
• Electrical — electrocution
• Radiation — ionizing radiation
• Barotrauma — pressure changes (blast, diving)

By Region:

• Head, neck, chest, abdomen, pelvis, spine, extremities, combined (polytrauma)

By Cause:

• Isolated — single organ/region
• Multiple — multiple sites by the same agent
• Combined — multiple agents simultaneously

Note: The textbook library available does not include a dedicated forensic medicine or legal medicine textbook, so these answers are based on established forensic medicine standards as taught in post-Soviet/CIS medical curricula (Ukraine, Russia, Kazakhstan, etc.), consistent with the format of your lesson questions. Core references for this material include: Forensic Medicine by Mukhanov, Sudova Medytsyna (Ukrainian curriculum), and internationally recognized works by DiMaio, Dolinak, and Spitz & Fisher.