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A jury decides whether to trust your exhibit before they understand a word of it.

Rudolf Arnheim spent a career studying how the eye reads an image. His finding: we perceive balance before we perceive content. A composition where everything sits in its rightful place reads as necessary. An unbalanced one, in his words, "looks accidental, transitory, and therefore invalid." That word - invalid - is why this matters in a courtroom.

Take the demonstrative below: a displaced distal radius fracture and a comminuted proximal phalanx fracture. Before you read a label, notice how it's built. Anatomical render on the left, magnified callouts anchoring the center, the diagnostic X-ray holding the right. Your eye travels left to right and lands on the film as the payoff. Nothing floats. Nothing feels accidental.

That structure persuades before the jury processes a word of the anatomy. A juror can't tell you why the board feels authoritative - but they feel it, and they feel it first. Get the composition wrong and the same facts read as sloppy. Sloppy reads as untrustworthy.
Balance isn't decoration layered on at the end. It's what earns the jury's trust or quietly forfeits it in the first half-second. And as courts sharpen their scrutiny of demonstrative evidence, the standard has to be that we compose to make the facts legible, never to bend them. Get it right, and the truth is believed before it's explained.

Rudolf Arnheim, Art and Visual Perception: A Psychology of the Creative Eye, University of California Press, 1974.