My suggestion to Mr Carmody
Why wouldn't you place Mr Crawford, Mr Martin, Mr Mc Heyzer, and Mr Lacey on temporary relief from their respective positions. On full pay, and maintaining full entitlements. Only until they have had the opportunity to demonstrate those personnel have not displayed unconscionable conduct, and that they have acted lawfully, and in the interests of aviation safety.
THis would temporarily remove them from an obviously stressful work environment, protect the good work and reputation, of the other personnel within CASA, decompress the situation, demonstrate at least a "professional" level of support for those personnel, expediate an outcome, and maintain or improve safety levels. My allegations are substantial, surely in Australia's safety authority that would be the most suitable course of action.