Overview
Westlaw Precision is a premium tier of the Westlaw legal research service, designed to make legal research faster and more accurate. It builds upon traditional Westlaw features by incorporating "Precision Research," a set of advanced search filters allowing users to narrow results based on specific criteria like legal issue (mapped to Key Numbers), fact pattern, motion type, cause of action, party type, and dispositional outcome. This aims to quickly surface the most relevant case law. It retains core Westlaw functionalities like the comprehensive Key Number System taxonomy, the KeyCite citation service for verifying legal authority validity, and access to Thomson Reuters' vast library of primary law (cases, statutes, regulations) and secondary sources (treatises, law reviews, etc.). It also integrates Litigation Analytics and content from Practical Law. Significantly, Westlaw Precision is the platform through which users access Thomson Reuters' generative AI assistant, CoCounsel, enabling AI-powered research summaries, document analysis, and drafting assistance directly within the research workflow.
Use cases
Primary: Conducting complex legal research to find highly relevant case law significantly faster than traditional keyword or Boolean searches, using specific legal issue and factual filters.
Other use cases:
- • Validating citations and checking case history (KeyCite)
- • Accessing and interpreting statutes and regulations
- • Consulting authoritative secondary sources
- • Analyzing judicial behavior and litigation trends (Litigation Analytics)
- • Leveraging integrated AI (CoCounsel) for research summarization
- • Document review
- • And initial drafting.
AI capabilities
- → Integrated AI via CoCounsel: Provides AI-generated research summaries, AI-powered document analysis (e.g., reviewing briefs, contracts), AI-assisted drafting (e.g., memos, communications), Natural language query understanding for research tasks. Note: The Precision Research filters themselves use sophisticated algorithms and potentially machine learning, but the generative AI component is primarily delivered through CoCounsel.
Pros & Cons
Pros
- ✓ Dramatically increases speed and accuracy of legal research
- ✓ Especially for complex queries; Reduces time spent reviewing irrelevant documents; Leverages highly trusted content and citation tools (KeyCite); Seamlessly integrates powerful generative AI features (CoCounsel); Comprehensive database covering multiple jurisdictions and document types.
Cons
- ! Higher subscription cost compared to basic Westlaw tiers; Requires some user training to fully leverage the advanced Precision Research filters; Primarily focused on legal research
- ! Although CoCounsel broadens the scope; Lock-in to the Thomson Reuters ecosystem.
Pricing
Model: Subscription-based, typically enterprise licenses for firms or organizations. Positioned as a premium offering.
Pricing details: Not publicly disclosed. Pricing is customized and generally higher than Westlaw Edge or Classic Westlaw plans. Requires contacting Thomson Reuters sales.
Integrations
- • Deep integration with CoCounsel (generative AI assistant).
- • Integration with Practical Law (know-how content).
- • Integration with other Thomson Reuters tools likely available (e.g., HighQ for collaboration, potentially drafting tools like Contract Express).
- • Add-ins for Microsoft Word/Office often available for Westlaw generally.
What sets it apart
- ★ Precision Research filters enabling faster identification of on-point cases
- ★ Integration with the trusted Westlaw Key Number System and KeyCite
- ★ Access to Thomson Reuters' extensive and often exclusive legal content
- ★ Serves as the primary platform for accessing integrated CoCounsel AI capabilities within the research workflow.
Compliance & security
Falls under Thomson Reuters' corporate compliance framework, which typically includes certifications like SOC 2 Type II, ISO 27001, and adherence to major data privacy regulations (GDPR, CCPA, etc.).