Legal research vs AI investigation: what's the difference?

Legal research tools and AI investigation platforms solve different problems. Confusing the two leads to using the wrong tool for the job — and wasted time.

What traditional legal research tools do

Tools like Westlaw, LexisNexis, and Practical Law are databases. They index statutes, case law, and legal commentary. You search by citation, keyword, or jurisdiction and retrieve documents. The analysis is yours to do.

What AI investigation tools do

AI investigation tools like Deepheem synthesise evidence. You provide a question or scenario, and the platform returns a structured verdict — findings, source classifications, evidence status labels, and a headline conclusion. The synthesis happens automatically.

When to use each

• Use legal research tools when you need the exact text of a statute, a specific case citation, or a comprehensive search of case law in a jurisdiction.
• Use AI investigation when you need to understand the landscape around a legal question, assess the credibility of a factual claim, or gather evidence about a party or entity.

Why serious legal teams need both

Legal research databases tell you what the law says. AI investigation tells you what the facts are. A barrister preparing a case needs both: the legal framework from a research database, and the factual evidence base from an investigation platform. Deepheem fits into the second category — and handles it faster than any manual research process.