What Is Discovery in a Lawsuit?

Discovery is the formal exchange of information between parties in a lawsuit. It's where most of the time and money in litigation actually goes — typically 6 to 12 months of back-and-forth in a typical civil case. Understanding the tools makes the process less mystifying.

1. Interrogatories — written questions

Written questions one side serves on the other, answered under oath. Each side typically gets 25–40 interrogatories. Answers are due within 30 days. Common subjects: facts of the dispute, identification of witnesses, damages calculations.

2. Requests for production — documents and things

Demands for documents, emails, photos, contracts, business records, and electronic data. Modern cases often involve massive electronic discovery ("e-discovery"). The producing party can object to overbroad or burdensome requests.

3. Depositions — recorded testimony under oath

An attorney questions a witness under oath, recorded by a court reporter (and sometimes video). Each deposition typically lasts 7 hours. Depositions are where cases are often won or lost — what witnesses say is locked in for trial.

4. Requests for admission — narrow the issues

Asks the other side to admit specific facts, eliminating the need to prove them at trial. Failing to respond is typically deemed an admission. A powerful tool for streamlining cases.

5. Discovery disputes are common

Parties often fight over the scope of discovery — what's relevant, what's privileged, what's burdensome. Motions to compel and motions for protective orders consume significant time and fees in contested cases.

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