Evidence: well sourced. Imported from the supplied 65-Case Master Edition, dated September 19, 2026. Source links and classifications are retained as an attributed case account; import is not an independent source review.
Case at a glance
- Case number
- 032
- Date / range
- 1985–2025
- Sector
- Law enforcement and forensic genetics
- Genetic asset
- Preserved remains and multi-person kinship evidence
- Security principle
- Multi-Person Kinship Reconstruction
Event summary
The Bear Brook investigation shows how mitochondrial, autosomal, and genealogical evidence can reconstruct identities and family relationships across multiple victims and suspects—but also how one unresolved node can persist for years.
The case in context
Bear Brook involved relationships among multiple people and links across investigative records. Identification occurred in stages, so the meaning of an older account depends on when it was written. The New Hampshire source listed below records the later identification of the final previously unidentified child.
The case separates three questions that are easily confused: who a person was, how people were related, and who was responsible for a crime. Evidence supporting one conclusion does not automatically establish the others. Preserved material and versioned hypotheses make it possible to revisit an unresolved relationship without treating an earlier inference as permanent fact.
Acquisition and processing
multiple remains → kinship testing → cross-case linkage → genealogy and records → phased identifications → renewed missing-person inquiry
The sequence of events
- multiple remains
- kinship testing
- cross-case linkage
- genealogy and records
- phased identifications
- renewed missing-person inquiry
What became inferable or exposed
Preserved remains and multi-person kinship evidence
The Bear Brook investigation shows how mitochondrial, autosomal, and genealogical evidence can reconstruct identities and family relationships across multiple victims and suspects—but also how one unresolved node can persist for years.
Affected parties and consent
- Direct parties
- The identified victims and connected family members
- Indirect parties
- Relatives and connected participants may be relevant where the asset contains relationship information.
- Direct count
- Unknown / not assigned
- Indirect count
- Unknown / not assigned
- Consent status
- The authority for collection and comparison must be assessed in the specific investigative or legal context; affected relatives may not have participated themselves.
Security dimensions
Confidentiality
The confidentiality question concerns preserved remains and multi-person kinship evidence. Exposure and further inference must be distinguished from the fact of collection or availability.
Integrity
The integrity question is whether the described material, permissions, processing, or interpretation can be relied upon. Multi-Person Kinship Reconstruction identifies the particular boundary examined here.
Availability
Access and continuity are assessed for the described event; potential effects are not presented as confirmed outages or losses.
Provenance
The relevant chain follows preserved remains and multi-person kinship evidence through the stages shown below. Missing public detail is not proof that internal records did not exist.
Consent, persistence, and relational exposure
Consent
The authority for collection and comparison must be assessed in the specific investigative or legal context; affected relatives may not have participated themselves.
Persistence
Later reuse depends on the actual asset and links to other records; no future misuse is asserted.
Relational exposure
Relatives and connected participants may be relevant where the asset contains relationship information.
Case-specific assessment
integrity/provenance critical; consent unavailable; confidentiality relational; availability of old evidence decisive.
GeneticSecurity.org analysis
Genetic Exposure Radius
No single level is assigned where the supplied dossier gives a range, conditional outcome, or broad institutional consequence. The affected parties and proposed assessment are shown separately.
Confidence: not assigned. Classification: GeneticSecurity.org analysis.
Genetic Persistence Risk
Persistence depends on the specific biological material or information retained. A potential effect is not treated as an observed genomic disclosure.
Confidence: not assigned. Classification: GeneticSecurity.org analysis.
Genetic Provenance Integrity
A numeric provenance level is not inferred from the existence of a source or court record. It requires evidence of the relevant custody and processing controls.
Confidence: not assigned. Classification: GeneticSecurity.org analysis.
Proposed classification and its limits
Suggested GER: GER-3. Suggested GPR: GPR-4. Suggested GPI: GPI-4.
These are proposed classifications from the supplied case dossier. Conditional scores describe an assumed exposure; they are not evidence that it occurred. A single numeric value is left unassigned when the asset or outcome is not sufficiently bounded.
What this case does not prove
Genetic genealogy did not solve every factual question or establish every missing person's fate. Separate identity, relationship, and criminal attribution.
Mitigations and lessons
- Long-term evidence preservation
- Interoperable case records
- Versioned kinship hypotheses
- Multidisciplinary review
- Confirmatory testing
- Living-family support
Primary sources
- PRIMARY SOURCE doj.nh.gov — Bear Brook Identifications source 1
Secondary sources
No additional source listed. See the evidence notes for limitations.
Policy and standards
Genetic Security Policy and StandardsReview and correction history
Source edition: September 19, 2026. Imported case account; no substantive corrections recorded.
Correction policy and logCite this case
GS-CASE-032. Bear Brook: A Family Tree Reassembled from Unidentified Remains. GeneticSecurity.org. https://geneticsecurity.org/cases/032-bear-brook-genetic-genealogy/