Ok here is the good stuff from my son who works for AP call centre in Brisbane.
Firstly the rules for safe drop are different between eparcel and regular parcels.
For regular parcels if there is a SOD sticker on it then the parcel cannot be safe dropped at all. It can't even be authorized by the receiver thru their MyPost account. If there is nobody at the address and signature is required then it MUST be carded and signed for on pickup.
If the delivery driver's scanner is not equipped with a camera (most are now) then that driver is not authorized to safe drop at all. If an item is safe dropped then a photo is mandatory.
No part of any person is allowed in a safe drop pic. This is for privacy and security reasons.
I think that about covers safe drop for regular parcels.
If there are other questions I will run them by him.