Westlaw

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Westlaw

An online research service for legal professionals in the United States. It provides users with thousands of documents, including statutes, court decisions, articles and so forth. Westlaw began in 1970.
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The opinions include enhancements, such as case synopses, headnotes and assignment in the West Key Number System.
0 has been pretrained on 20 million headnotes - written and classified to the West Key Number System by West's highly experienced attorney-editors - to sort documents against these legal topics.
Further classification of judicial opinions by the exclusive West Key Number System -- a detailed index of more than 400 legal topics and 90,000 subtopics -- ensures unparalleled accuracy of search results.

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