According to the Istanbul Protocol (UN Manual on Effective Investigation and Documentation of Torture), the classification of physical evidence of torture includes 'diagnostic' and which other evidence category that acknowledges limitations of examination?

• A 'Pathognomonic' evidence — specific to torture with no alternative explanation
• B 'Circumstantial' — only documentary evidence in the absence of physical findings
• C 'Corroborative' — only applicable when witness testimony confirms torture
• D 'Consistent with' — findings could result from torture but are not unique to it ✓

Explanation

The Istanbul Protocol classifies physical findings on a 5-tier scale: (1) Not consistent — no relationship with torture; (2) Consistent with — could be caused by torture but also by other means; (3) Highly consistent — typical of torture, though other causes possible; (4) Diagnostic — could only have been caused by torture; (5) Diagnostic of past torture — remote evidence. The 'consistent with' category is the most frequently applicable, since most physical injuries of torture lack specificity. This graduated evidentiary framework is essential for medico-legal documentation and the basis for forensic reports to tribunals.

Reference: The Essentials of Forensic Medicine and Toxicology (Narayan Reddy), 34th ed.

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Written and medically reviewed by the StethoPrep medical team.