How robust is whistleblower protection?

https://0d212709-8ee9-4195-8c60-95b6f6f4d2e0.usrfiles.com/ugd/0d2127_710bbf3b1a9d4abaa8a28bd1aeadb90b.pdf

We have some of the most stringent IR laws in the Western World, but they can fall short of their objective.