As outlined in the explanatory memorandum, the Attorney-General may authorise a person to perform or exercise the relevant functions or powers if the person is:

This ensures the authorised person is of sufficient seniority to exercise powers … that would otherwise be vested in the head of the agency.

And, to be clear:

… an authorisation may authorise a person to perform a function or exercise a power in relation to specified proceedings, specified acts or omissions, or in specified circumstances.

It also provides that the authorisation can authorise a person to perform a function or exercise a power under the act. I can take you through some examples of that, but they are in the act and the explanatory memorandum.