Case Theory Construction¶

Why It Matters¶

Humans don't process information as isolated facts; we process stories. A decision-maker presented with a jumble of evidence will construct their own narrative to make sense of it. If you don't provide a compelling narrative, they'll create one - and it might not favor you. Case theory transforms information overload into understanding. It also serves as an organizational tool: every piece of evidence either supports your theory, undermines the opponent's theory, or is noise. This helps you decide what to investigate, what to emphasize, and what to ignore.

The Key Move¶

Before diving into evidence, articulate your theory in 2-3 sentences: "This is a case about X, where Y happened because Z." Then test every piece of evidence against this theory. Does it fit? Does it complicate the story? Does it suggest an alternative theory you haven't considered? If multiple pieces of evidence don't fit, your theory is wrong - revise it. Your final theory should be the simplest narrative that accounts for the most important evidence while remaining legally sufficient. Never present evidence without explaining how it advances your theory.

Classic Application¶

Criminal defense in circumstantial evidence cases. Prosecution presents: defendant's fingerprints at scene, motive, inconsistent alibi. Weak defense: "Prosecution hasn't proven every element beyond reasonable doubt." Strong defense: "This is a case about tunnel vision, where police fixated on the easiest suspect and ignored evidence of the actual perpetrator." Every cross-examination question, every defense witness, every closing argument point reinforces this single narrative of investigative failure, reframing the same evidence as proof of investigator bias rather than defendant guilt.

Surprising Application¶

Product launch post-mortems. Team is trying to explain why launch failed. Common approach: list everything that went wrong (supply chain, marketing, pricing, competition). This generates no actionable insight. Better: construct a theory. "This failed because we optimized for existing customer retention when we needed new customer acquisition" or "This failed because we solved the problem we could measure rather than the problem customers actually had." Now evaluate each listed problem: does it support this theory, or suggest a different theory? The discipline of building one coherent narrative forces you to distinguish root cause from symptoms.

Failure Modes¶

Constructing theory before investigating facts - your biases will shape what you see. Treating theory as commitment rather than hypothesis - when evidence contradicts theory, update the theory, don't hide the evidence. Building legally sufficient but emotionally implausible theories - "Client technically complied with the rule" is weak if the story feels dishonest. Over-complicated theories - if you need five interlocking explanations, you're probably wrong. Ignoring opponent's theory - you need to explain their evidence, not just present yours.

Go Deeper¶

Amsterdam, Anthony G. & Bruner, Jerome. "Minding the Law." Harvard University Press, 2000; Schrager, Samuel H. "The Trial Lawyer's Art." Temple University Press, 1999, Chapter 2.