Expert witnesses

Year: 2026
Role: Concept and engineering
Status: NDA

Software for expert witnesses who work through court files. It brings AI into work on which Section 203 of the German Criminal Code sets tight limits.

Publicly appointed experts are named explicitly.
Section 203 (2) sentence 1 no. 5 StGB
“… a publicly appointed expert who has been formally obliged by law to conscientiously perform his or her duties …”
Service providers may be involved to the extent this is necessary.
Section 203 (3) sentence 2
“… may reveal another’s secrets to other persons who are involved in their work or official duties to the extent that this is necessary in order to be able to use the service rendered by this other involved person …”
Anyone involved is liable themselves.
Section 203 (4) sentence 1
“Whoever, without being authorised to do so, reveals another’s secret which has become known to them in the exercise or on the occasion of their work as an involved person … incurs a penalty of imprisonment for a term not exceeding one year or a fine.”

Wording from gesetze-im-internet.de, English translation provided by the Federal Ministry of Justice. No legal advice.

Animation: a court file grows from pleading to pleading, is uploaded and indexed page by page. Page 387, an order for evidence, then passes a line. Above the line, names, the address, the company and the case number are replaced by black bars with placeholders; below it the text stays readable, and the key to the placeholders stays with the expert.

§ 203 StGBGoes to the AIStays with the expert

Keystays with the expert

Stays below the line, with the expert.

Lawyers now write their briefs with AI, and court files keep getting longer. An expert who wants to get through them in time needs AI as well.

The file is uploaded once and captured page by page. Every passage keeps its page number, so it can serve as a source later.

Before any AI reads it, names, addresses and case numbers are replaced. The key stays with the expert. The AI only works with placeholders.

The site visit is recorded on a phone. Photos and dictation are taken in the app, the dictation is transcribed, and both are waiting in the dashboard afterwards.

10:41

Site visitQuestion 1 · north wall

Photos 6

00:00Dictation

Transcript saved

In the dashboard, it all becomes a documented form. The AI suggests entries and names a source for each one. Nothing goes in until the expert confirms it.

Site visit report

Question of evidence 1

Were the windows installed on 14 March 2024 properly sealed?

Findings, north wall

Crack in the plaster below the left window, up to 2 mm wide. Plaster below is damp.

Moisture stain

Damp stain below the crack, about 40 × 25 cm.

Concept and engineering by one person, together with AI agents. Client, code and interface are under NDA. What this page shows are wireframes with made-up data.

Title: Software for expert witnesses
Concept and engineering: Jan Stecher, with AI agents
Year: 2026
Status: NDA
Release

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