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Enhanced Brief Analysis Tool on Lexis+ Uses Power of AI to Flag “Favorable” or “Unfavorable” Authority for Litigators

August 31, 2022

We recently discussed how new Artificial Intelligence (AI)-powered technology tools are empowering litigators to create winning briefs in ways they might not have ever imagined, and introduced some important new features built into the most comprehensive of these tools available to litigation professionals.

This summer LexisNexis rolled out two major features to enhance the power of Brief Analysis, which is available exclusively on Lexis+. In our previous post, we focused on the new Winning Briefs feature, which makes it easier for you to identify arguments that have prevailed in past cases that were similar to yours. In this post, we introduce the new Favorable/Unfavorable Authority feature.

The Tool

Brief Analysis delivers valuable legal insights by analyzing a legal brief — your own and your opponent’s as well — in realtime. It starts by simply dragging and dropping the brief you’d like to analyze into the tool, then turning it loose to do its work. No searches need to be formulated or launched.

The Brief Analysis tool uses AI to instantly scan an entire document and then produces a dashboard report from which you can pinpoint legal concepts, surface additional research recommendations and review suggestions for crafting stronger legal strategies. This dashboard provides you with a simple visual snapshot of various ways to improve the brief before you file it with the court.

Flag Favorable/Unfavorable Case Authority

Litigators often get stuck spending hours of valuable time reading through cases to find one that supports their position — or perhaps that contradicts their opponent’s position — before deciding whether to include them in their brief. You now have access to a powerful new research tool that does some of that reading for you so you can find the best-case authority quickly.

On the “Case Recommendations” tab for a selected passage from the brief that you wish to analyze (your own or your opponent’s), Brief Analysis now automatically flags whether the cases that are cited in that passage contain case authority that is favorable or unfavorable to the arguments made in the brief.

The favorable (unfavorable) authority tags help litigators immediately identify any case authority that may support or run counter to their position in the brief.  Using this information, litigators can more effectively find the strengths and weakness in their briefs or their opponent’s briefs.  This additional insight could provide a competitive advantage that reduces your risk of overlooking a crucial piece of information and ultimately improves your chances of winning the case.

Important data fields are surfaced by the tool to provide greater insights about the flagged case and to help you better evaluate how it is relevant to your own case. This data includes:

  • Motion type (e.g., motion to dismiss)
  • Matching motion tags
  • Trial outcome (e.g., granted or denied)

The recommendations that are automatically displayed will easily direct you to the relevant passage in the flagged case that specifically relates to the corresponding section of your brief.

In addition, a new “Procedural” section in Brief Analysis has been added to the dashboard, showing you the procedural information that has been extracted from your brief in order to determine whether a recommended case is favorable or unfavorable. This allows you to transparently review the assumptions used by the tool and edit any of the “Procedural” data fields in the way you like to ensure the information you’re receiving is accurate.

Try it Out

Brief Analysis is the only product on the market that provides users with an easy to navigate dashboard, patented and editable concept mapping, winning briefs, motion history, favorable and unfavorable authority, judge and counsel information with links to Context for analytical insights, and the seamless integration of Shepard’s case citation analysis.

Brief Analysis is available exclusively on Lexis+, an all-in-one platform from LexisNexis that combines superior research and data-driven insights. Lexis+ provides legal professionals with all the tools and resources necessary to practice with confidence and efficiency: Legal Research; Litigation Analytics; Brief Analysis; Legal News Hub; and Practical Guidance.

To learn more and try it out for yourself, please go to