From the perspective of our mandate, we will listen to recordings after a reportable occurrence takes place in the conduct of a TSB investigation. The use of that data is a reactive approach. What we would like to see and what we're supportive of is the railway companies being able to access that information proactively in the context of a non-punitive SMS or to investigate those incidents that we don't investigate as long as the safeguards are there to ensure that the data remains privileged, not public, and isn't used for discipline against individual employees unless they've identified a threat to safety.
On September 11th, 2017. See this statement in context.