Demonstrative Evidence

“Since “seeing is believing,” and demonstrative evidence appeals directly to the senses of the trier of fact, it is today universally felt that this kind of evidence possesses an immediacy and reality which endow it with particularly persuasive effect.”

2 McCormick On Evidence § 214

Types of Analyses

Types of Demonstrative Evidence in Construction

Labeled Photographs, Diagrams, Flow Charts, Cost Calculations, Schedule Reports and Graphs, Anotated drawings, specifications and other types of documents, and much, much more.

See the whitepaper "The DOs and DONTs of Demonstrative Evidence.pdf"

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James G. Zack, Jr.
Executive Director
Navigant Construction Forum,
Navigant Consulting, Inc.


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Impact Documents

Field Work Stoppage

Activity/Task Work Stoppage


Speed Memos/E-mails

Delay Notification

Cost Impact Notification