Roux v. van Greunen
High Court · Jan 29, 2026
What happened in this matter?
The court found that the applicant relied on a non-existent judgment, 'Matshoba and Another v Acting Master of the High Court, Johannesburg and Others,' which the court identified as an AI hallucination. The applicant was unable to produce an authentic copy, instead providing a 'compiled' Word document that contained further errors, such as referencing a non-existent judge.
- Why the court cared
- Fabricated: Case Law | Relied on a non-existent judgment 'Matshoba and Another v Acting Master of the High Court, Johannesburg and Others' (applicant produced a 'compiled' Word document); court could not locate the reported or neutral citation and concluded it was an AI hallucination.
- Why it matters now
- A 'compiled' Word document of a judgment is a red flag; courts expect neutral citations traceable to official reporters.
Why this matter is tracked
In this High Court matter, the applicant, a pro se litigant, relied on a non-existent judgment titled 'Matshoba and Another v Acting Master of the High Court, Johannesburg and Others' to support his legal arguments. The applicant claimed the judgment was reported in the South African Law Reports and provided a 'compiled' Word document when challenged. The court conducted independent searches of legal databases and repositories, confirming the judgment did not exist and that the cited neutral citation belonged to an unrelated case. The court concluded the applicant had been misled by an AI hallucination, noting that the applicant's reliance on AI-generated content resulted in irrelevant matter and ineffective legal analysis that failed to assist the court.
A 'compiled' Word document of a judgment is a red flag; courts expect neutral citations traceable to official reporters.
Record details
What the record establishes about AI use
The applicant admitted to using AI systems but did not specify which ones.
The matter was heard in the High Court of South Africa as an urgent application involving multiple counter-applications and requests for supplementary relief.
Correction behavior is not separately verified in the current record.
Tracked discrepancy record
1 citation, quotation, or authority issues are recorded in the source dataset.
- Fabricated: Case Law | Relied on a non-existent judgment 'Matshoba and Another v Acting Master of the High Court, Johannesburg and Others' (applicant produced a 'compiled' Word document); court could not locate the reported or neutral citation and concluded it was an AI hallucination.
Questions this record answers
- What happened in Roux v. van Greunen?
- The court found that the applicant relied on a non-existent judgment, 'Matshoba and Another v Acting Master of the High Court, Johannesburg and Others,' which the court identified as an AI hallucination. The applicant was unable to produce an authentic copy, instead providing a 'compiled' Word document that contained further errors, such as referencing a non-existent judge.
- Why does Roux v. van Greunen matter for legal AI risk?
- A 'compiled' Word document of a judgment is a red flag; courts expect neutral citations traceable to official reporters.
- What does the public record establish about Roux v. van Greunen?
- Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
- Which source supports this Roux v. van Greunen summary?
- The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.
Related matters
Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.