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LGL 125: Legal Research (AL): Validating

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Why Validate?

Validate (Shepardize) to:

  • Determine if the case is still good law
  • Find newer cases that have cited your case

Shepard's Signals

Shepard's Signals (excerpted from Nexis Uni)

The Shepard's Signal Marker indicates the standing of your case as treated by other cases.

Negative treatment indicated-Warning: Negative treatment is indicated
Questioned Analysis-Questioned: Validity is questioned by citing references
Caution: Possible negative treatment-Caution: Possible negative treatment
Positive treatment indicated-Positive treatment is indicated
Citing references with analysis available-Citing references with analysis is available
Citation information available-Citation information is available

Shepard's Citations: By Case Number

How do I Shepardize a document when I know its citation?

Retrieving a Shepard's® report by citation can be done in a couple ways.

The most common method is to enter shep: in the search box, followed by your citation.  For example: 

shep: 800 F.2d 111 
shep: 410 us 73

You could also enter just the citation name in the search box, click Search, then click the Shepard's Signal™ indicator next to the document name.

Shepard's Citations: Viewing a Case

When you have a list of Cases in a results list, you can Shepardize by selecting the Shepard's signal to the left of the case name:


If you have a case document open, you can Shepardize using the Shepard's signal there, and also see additional choices: