Fact-checking AI: How to verify AI-generated legal content (with citations)
For legal professionals, the value of AI depends entirely on whether its outputs can be verified, cited, and defended. Lexis+ AI is designed around this reality. Unlike general‑purpose AI tools, it is built on authoritative LexisNexis content and structured to support transparent fact‑checking with citations.
This post focuses on the actual process of fact‑checking AI‑generated answers inside Lexis+ AI, step by step, with an emphasis on how lawyers validate sources before relying on them in legal work.
1. Start with a conversational legal question
Fact‑checking on Lexis+ AI begins the same way most legal research does: with a question. Users can ask Lexis+ AI a natural‑language query, such as:
“What is the procedure for obtaining a final injunction?”
Lexis+ AI generates a narrative response, but critically, it does not stop at the answer. The system is designed to surface the legal authority underlying that response, drawing from LexisNexis primary and secondary sources rather than open‑web content.
Step 2: Review the linked legal authorities
Each Lexis+ AI response is accompanied by linked citations to the cases, statutes, regulations, or secondary sources used to generate the answer.
This means you can:
- Open each cited case or statute directly from the AI response
- Confirm the authority exists
- Verify that the quoted or summarised proposition appears in the source.
Step 3: Validate case law using UK case analysis tools
On Lexis+ AI, users should rely on the platform’s integrated case analysis and history features, which allow you to:
- Review a case’s subsequent judicial treatment
- Identify whether it has been followed, distinguished, or overruled
- Understand how later courts have interpreted or limited the decision
This step is essential for ensuring that AI‑generated legal propositions are still authoritative under current UK law.
Step 4: Read for context, not just confirmation
After confirming that a citation is valid and good law, the next fact‑checking step is contextual review.
Legal professionals should:
- Read the relevant portion of the opinion or statute
- Confirm that the holding applies to the stated legal issue
- Check jurisdictional relevance and procedural posture
Step 5: Use AI‑assisted drafting, then re‑check citations
Lexis+ AI can assist with drafting memos, briefs, and outlines using verified legal sources. When doing so, fact‑checking remains part of the workflow.
Before finalising any AI‑assisted draft:
- Confirm every cited authority appears in Lexis+ AI
- Check each case
- Ensure quotations and paraphrases accurately reflect the source
Lexis+ AI does not remove the need for fact‑checking. It supports a UK‑appropriate, citation‑led research process that helps lawyers work faster without compromising accuracy or authority.
“Fundamentally, with these technologies, the content is king. If you have got the content, the product will be better. Lexis+ AI works on trusted, curated, managed and structured content. That is a LexisNexis USP”.
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