In the US it varies by state.[1] In "one-party consent" states, you can record any conversation you yourself participate in. California is an "all-party conse

In the US it varies by state.[1] In "one-party consent" states, you can record any conversation you yourself participate in. California is an "all-party consent" state, though, so this approach wouldn't work for most tech companies. [1] http://www.gshllp.com/download/general_firm_documents/WEB%20Can%20your%20employee%20secretly%20record.pdf http://www.gshllp.com/download/general_firm_documents/WEB%20... [2] http://blog.ogletreedeakins.com/sixth-circuit-rules-employers-can-avoid-fiascos-like-romneys-47-recording-by-banning-secret-recordings-in-the-workplace/ http://blog.ogletreedeakins.com/sixth-circuit-rules-employer...