FM4.4-5,FM14.8 | Identification from Skeletal & Other Remains — Summary & Reflection

KEY TAKEAWAYS

Identification from remains proceeds from trace evidence to individual-specific markers. Hair examination distinguishes human (medullary index <0.33, flattened scales, diffuse pigment) from animal hair (medullary index ≥0.5, coronal scales). Anthropometry (Bertillon) is obsolete, replaced by fingerprinting after the 1901 Will West case. Dactylography classifies fingerprints into 3 types: loops (~65%, 1 delta), whorls (~30%, 2 deltas), arches (~5%, no delta); the Henry Classification System enables large-scale searching; individualisation uses ridge minutiae (8–12+ concordant points for Indian courts). Poroscopy (Locard) compares sweat pore patterns at finer resolution. Footprints and scars/tattoos provide semi-permanent individualising features; tattoo pigment persists in dermis through decomposition. Superimposition (not facial reconstruction) requires a known skull PLUS an ante-mortem photo of a specific suspected person; it provides probable identification or exclusion. The FM14.8 skeletal examination follows a structured sequence: human confirmation → individual count → biological profile → individualising features → dental charting → trace evidence referral. Legal admissibility rests on IEA Sections 45 and 73 and the Identification of Prisoners Act 1920.

REFLECT

A forensic science documentary on television shows an expert 'identifying' a murder victim through facial reconstruction — the reconstructed face is shown to match a missing person's photograph, and the presenter calls it 'a definitive identification.' Based on what you now know, what is scientifically wrong with this presentation, and how would you explain the distinction between facial reconstruction and superimposition to a non-specialist journalist? Consider also: does it matter if the public — including potential jury members — misunderstands these methods? What are the implications for justice?