Demonstrative evidence helps a jury understand testimony by illustrating it visually or physically: a timeline chart, an anatomical model, a summary chart of financial data, or a computer animation of an event. Unlike substantive evidence, a demonstrative exhibit is typically not offered to independently prove a fact — it exists to make a witness's testimony easier to follow and remember.

Courts require that a demonstrative fairly and accurately represent what it purports to show, and exclude demonstratives that are misleading, unfairly prejudicial, or not adequately tied to actual testimony or evidence in the case. Whether a demonstrative goes into the jury room during deliberations, as opposed to being used only during testimony, varies by jurisdiction and by the judge's discretion.

Juricratic's own war-room visualizations are explicitly framed the same way a courtroom demonstrative is: an illustration of the underlying modeled state, never a second source of authority. A sensitivity chart or trajectory view helps a user understand a simulated matter, but the case's actual evidence and event record remain the only real source of truth.

Trial teams build demonstratives to make complex testimony — technical processes, financial calculations, timelines — accessible to a jury, and vet each one for accuracy and fair representation before offering it, since a misleading demonstrative invites both an evidentiary objection and a credibility hit with the jury. Coordinating demonstratives with the underlying witness testimony ahead of trial avoids objections mid-examination.