Neville,
The answer to your first two examples is easy --- both will be covered by Legislative Instruments , have a look at the CASA web site for many examples for minima below standard minima.
If you have a "tailored" Jepp, they will print your actual minima, not the IAL minima.
As for the last, another example of the fact that FOIs come out of industry, and due to nil/inadequate training, they just continue on with all the misconceptions they "absorbed" before being elevated to godlike status (at least in their --- in some cases own eyes).
See the last two ICAO audit reports, it's all public information.
Tootle pip!!