It's primarily protection and support downstream, because any process requiring the whistle-blower to put together a case is misplaced in the first place. All these protections should be triggered simply by a reasonable suspicion or a reasonable concern. The onus should pass to the agency or to the Integrity Commissioner to then deal with that properly and to do the investigation. As soon as it becomes a situation where the whistle-blower is responsible for “putting the case”, it's almost saying he or she has to investigate it, he or she has to put together all the evidence, and the whole system is far too reactive.
The whole idea is that it becomes the government's problem, the agency's problem, to deal with it responsibly, not for the onus to be on the whistle-blower.