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FORENSIC EXCAVATION REPORT: CHEMMANI FINDINGS SUMMARY-12 June 2026

Technical Briefing & Interim Summary

Date of Compilation: 12 June 2026

Site Location: Chemmani–Siththupaththi, Jaffna, Sri Lanka

Lead Investigator: Prof. Raj Somadeva

Judicial Oversight: Jaffna Magistrates’ Court

Reporting Body: Advocacy Working Group for Chemmani Families

1. Executive Summary & Core Mandate

This briefing summarizes the current forensic findings and operational status of the mass grave excavations at Chemmani–Siththupaththi as of June 12, 2026. The site represents one of Sri Lanka’s most critical active mass-grave investigations, directly linked to a broader historic crisis of enforced disappearances.

Key Site Metrics (As of 12 June 2026)

●       Total Formally Identified Remains: 341 individuals (+2 identified today)

●       Total Exhumed Remains: 327 individuals (+9 exhumed today)

●       Comparative Scale: Current recovery volumes approach the scale of the Mannar Sathosa mass grave site ($376$ remains recovered).

Critical Caveat: The recovery of infant and juvenile remains underscores the extreme humanitarian urgency of this operation. The primary rate-limiting barriers to comprehensive identification remain localized DNA laboratory throughput and structural funding constraints.

2. Background, Significance & Context

The site at Chemmani–Siththupaththi first entered the public and legal record in the late 1990s following formal allegations of clandestine mass burials. Following decades of community advocacy and renewed legal petitions throughout the 2010s, the Jaffna Magistrates' Court ordered systematic, forensic-led excavations, which officially commenced in 2025.

The investigation operates under a court-supervised chain-of-custody framework to ensure all recovered physical evidence is legally preserved for future truth-seeking, accountability, and judicial proceedings.

3. June 2026 Forensic Field Update & Methodology

Field operations are currently in Phase 3, focusing on methodical grid expansion and stratigraphic trenching.

Field Methodologies Employed

●       Stratigraphic Trenching: Layer-by-layer sediment removal with precise in-situ (original location) documentation of positioning.

●       Spatial Mapping: High-resolution photography, 3D geospatial mapping, and context logging of all anomalies.

●       Evidence Collection: Systematic bone sampling for DNA extraction and comprehensive osteological profiling.

●       Chain-of-Custody: Immediate court-supervised cataloging and sealed transport of all biological and material evidence to diagnostic laboratories.

Material Recovered

Recent exhumations have yielded complex skeletal elements, degraded clothing fragments, small personal artifacts, and children's toys. While osteological measurements are ongoing, the high volume of commingled (mixed) deposits significantly complicates field tracking and individual separation.

4. Chronological Phase Chronology

The structural timeline below highlights the progression from early discovery to active forensic intervention.

Phase 1: Initial Allegations

Late 1990s

Initial public allegations regarding mass burial sites emerge; limited, non-systemic exploratory probes conducted.

Phase 2: Judicial Mobilization

May – Dec 2025

Court-ordered trenching begins. First systematic exhumations successfully establish the presence of multi-individual deposits.

Phase 3: Grid Expansion

Apr – Jun 2026

Field teams expand the trench grid. Daily exhumations yield high-density deposits, shifting focus heavily toward forensic documentation and osteological profiling.

Latest Field Update

12 June 2026

Two additional skeletons formally identified (cumulative total: 341). Nine individual skeletons exhumed today (cumulative total: 327), including juvenile remains.

Recent Phase 3 Field Logs

●       2026-04-01: Phase 3 operations mobilize. Extended trench grid parameters established.

●       2026-05-12: Complex commingled deposit identified in Trench B; specialized sampling protocols enacted to manage mixed skeletal elements.

●       2026-06-09: Phase 3, Day 20: 9 skeletons exhumed. Forensic examination indicates 8 are juvenile remains. Cumulative exhumations reach 327.

●       2026-06-12: Core identification database updated to 341. Size and scope profile matches previous major regional forensic sites.

5. Evidence Inventory & Laboratory Log

All evidence is categorized under strict alphanumeric identifiers assigned at the point of exhumation.

Item ID	Item Classification	Spatial Context	Current Forensic Status
E-2026-001	Skeletal Bundle	Trench B, Layer 3	DNA sampling complete; stored in sealed depository.
E-2026-002	Children’s Toy Fragment	Adjacent to E-2026-001	Photographed, cataloged, and held for context mapping.
E-2026-003	Clothing Fragment	Trench C, Layer 2	Sampled; specialized textile and dye analysis pending.
E-2026-004	Isolated Skeletal Element	Trench D, Layer 4	DNA sample extracted; osteological baseline recorded.
E-2026-327A–I	Skeletal Remains (9 Individuals)	Trench B, Layer 3	Exhumed 12 June 2026. Logged and sampled; contains juvenile profiles.
E-2026-341	Skeletal Remains (Identified)	Master Registry	Added to formal identification registry; awaiting reference matching.

Diagnostic Status & Processing Bottlenecks

DNA extraction is heavily hindered by the degraded state of environmental samples and high rates of co-mingling. Local and national laboratory capacities are saturated, resulting in significant turnaround delays. Comprehensive family reference collection drives are urgently needed to provide the comparative data required to match and clear the remaining backlog.

6. Structural & Operational Obstacles

[Systemic Barriers to Progress]
 ├── Scientific: Highly degraded and commingled remains complicate DNA isolation.
 ├── Technical: Severe shortfalls in national lab processing capacity and specialist personnel.
 ├── Financial: Intermittent, non-continuous funding structures disrupt field operations.
 └── Procedural: Extended judicial and legal review timelines stall field expansion.

7. Recommended Immediate Action Items

To preserve evidentiary integrity and ensure a dignified process for affected families, the following actions must be prioritized:

1.International Forensic Oversight:Immediate Priority.

Secure independent, international forensic validation to benchmark methods, audit chains of custody, and ensure global scientific acceptance.

2.Stabilize DNA Identification Funding:Resource Allocation.

Launch a dedicated, fully funded DNA identification program accompanied by regional family reference sample collection drives to clear the matching backlog.

3.Family-Centered Support Infrastructure:Humanitarian Mandate.

Deploy localized psychosocial counseling networks and establish transparent, dignified notification and return protocols for recovered remains.

4.Public Transparency Reporting:Information Security.

Maintain regular, standardized public reporting of exhumation updates to counter misinformation and build community trust.

5.Judicial Continuity and Safeguards:Legal Preservation.

Enact permanent court protective orders to safeguard the physical site, field records, and stored biological evidence against tampering or premature closure.

8. Administrative Contacts & Coordination

●       Forensic and Legal Liaison:
Prof. Raj Somadeva | Under Direction of the Jaffna Magistrates’ Court

●       Advocacy & Civil Society Coordination:
Advocacy Working Group for Chemmani Families (In partnership with regional NGO networks)

Document Footer: For advocacy, technical briefing, and layout planning use only. Data current to June 12, 2026.

     In solidarity,

     Wimal Navaratnam

     Human Rights Defender |Independent Researcher | ABC Tamil Oli              (ECOSOC)

      Email: tamilolicanada@gmail.com

Intended audience and use Audience: Policymakers, international legal bodies, human rights investigators, forensic researchers, advocacy organizations, and affected communities. 

Use: Executive Summary and timeline for rapid briefing; consolidated legal framework for legal assessment; appendices for source verification and methodological transparency.