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
042
Date / range
Historical treatment / later discoveries
Sector
Reproductive and heritable genetics
Genetic asset
Reproductive material, clinic records, and genetic-relative matches
Security principle
Reproductive Provenance Fraud

Event summary

Consumer DNA matching helped donor-conceived people discover that fertility doctor Donald Cline had used his own sperm without patients' informed agreement, turning kinship databases into an audit mechanism for decades-old reproductive records.

Source: pmc.ncbi.nlm.nih.gov — Donald Cline Fertility Fraud source 1.

Source: iga.in.gov — Donald Cline Fertility Fraud source 2.

The case in context

Unexpected genetic-relative matches helped expose relationships that clinical representations had concealed. The Cline case makes reproductive provenance tangible: records about the source of reproductive material can shape a person's understanding of family for decades.

Genetic comparisons are an important audit mechanism, but they do not independently establish every date, act, or clinical conversation. Documentary evidence remains relevant. The security lesson connects donor identity, custody, and truthful records with the lasting consequences of substitution, without relying on changing or speculative counts of relatives.

Acquisition and processing

promised donor insemination → undisclosed substitution → births → decades of hidden kinship → consumer DNA matches → cluster detection → legal/policy response

The sequence of events

  1. promised donor insemination
  2. undisclosed substitution
  3. births
  4. decades of hidden kinship
  5. consumer DNA matches
  6. cluster detection
  7. legal/policy response

What became inferable or exposed

Reproductive material, clinic records, and genetic-relative matches

Consumer DNA matching helped donor-conceived people discover that fertility doctor Donald Cline had used his own sperm without patients' informed agreement, turning kinship databases into an audit mechanism for decades-old reproductive records.

Security dimensions

Confidentiality

The confidentiality question concerns reproductive material, clinic records, and genetic-relative matches. 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. Reproductive Provenance Fraud 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 reproductive material, clinic records, and genetic-relative matches through the stages shown below. Missing public detail is not proof that internal records did not exist.

GeneticSecurity.org analysis

Genetic Exposure Radius

Not assessed

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

Not assessed

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

Not assessed

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-5. Suggested GPI: GPI-0 for clinic provenance, later raised by direct testing.

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 alone does not establish every act or date; documentary evidence and direct comparisons matter.

Mitigations and lessons

  • Donor identity ledgers
  • Dual witnessing
  • Chain-of-custody
  • Centralized donor limits
  • Patient-accessible records
  • Independent audits
  • Criminal/civil statutes tailored to reproductive fraud

Primary sources

Secondary sources

Policy and standards

Genetic Security Policy and Standards

Review and correction history

Source edition: September 19, 2026. Imported case account; no substantive corrections recorded.

Correction policy and log

Cite this case

GS-CASE-042. Donald Cline: Genetic Genealogy Exposed a Hidden Biological Father. GeneticSecurity.org. https://geneticsecurity.org/cases/042-donald-cline-fertility-fraud-genetic-genealogy/