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Thomson Reuters Westlaw is the industry's most preferred online legal research service year after year. With Westlaw, you can find the legal information you are looking for quickly and confidently so you can build the strongest argument possible. You need to know you are relying on accurate law - because your practice depends on it.
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We continually invest in our people and technology. The result: six new features that help you get to the right answer faster.
Westlaw helps to make sure you don't miss anything by serving up the most on-point documents. With access to the largest collection of legal information, backed by our rigorous editorial process, you can access legal resources such as:
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Start your free trial todayOur team of bar-admitted attorney editors are tracking changes in the law every day so you can trust that the law you get is accurate and up to date.
Westlaw leverages a long-standing history of proprietary analysis of the law and exclusive tools like Key Numbers and KeyCite, as well as headnotes, notes of decisions, indexes, and secondary sources.
Couple our editorial excellence with WestSearch, the world's most advanced legal search engine, and you quickly get the documents most relevant to your search query.
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Start your free trial todayThe introduction of WestSearch, the only search engine designed specifically for the practice of law, was a significant leap in the application of Natural Language processing, machine learning, and information retrieval. WestSearch was a milestone event in advancement of legal technology, but we didn't stop there.
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Start your free trial todayYear after year, Westlaw is voted Best Online Legal Research Service by industry professionals. In fact, Westlaw has been named the most preferred online legal research service for 13 years running, as recognized by the ABA.
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"When you've got a research tool like Westlaw, there is no reason not to be complete and thorough in your research."
Tom Carpenter
City Attorney
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Best Legal Research App
Westlaw legal research is approaching a whole new level of sophistication in finding better answers faster.
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Both technology and legal experts discuss the likely impact that artificial intelligence will have on day-to-day work for lawyers.
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Experts agree that AI will have an impact on the information-intensive legal profession. But how? And when?
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