Sometimes a case is more complex than simply uncovering data from a single source and reporting back on it. Particularly in law enforcement investigations, there will often be many different people working on the same case, some of whom are non-technical investigators, and this makes it important for multiple individuals to be able to view, sort through, and report back on data regardless of their level of technical knowledge.
Nuix's solution to this is its Web Review & Analytics tool, which sits on top of its eDiscovery and Director suites and allows multiple users to collaborate.