Havn't read all of the earlier posts, so someone else may have posted this. I was ploughing through the CAR's earlier today and came across these....
225 Pilots at controls
(1)The pilot in command must ensure that 1 pilot is at the controls of an aircraft from the time at which the engine or engines is or are started prior to a flight until the engine or engines is or are stopped at the termination of a flight.
Penalty: 50 penalty units.
(2)When, in accordance with these regulations, 2 or more pilots are required to be on board an aircraft, the pilot in command must ensure that 2 pilots remain at the controls at all times when the aircraft is taking off, landing and during turbulent conditions in flight.
Penalty: 50 penalty units.
(3) An offence against subregulation (1) or (2) is an offence of strict liability.
Note For strict liability, see section 6.1 of the Criminal Code
230 Starting and running of engines
(1)A person must not:
(a) start the engine of an Australian aircraft; or
(b) permit the engine of an Australian aircraft to be run;
if it is not permitted by this regulation.
Penalty: 25 penalty units.
(1A) An offence against subregulation (1) is an offence of strict liability.
Note For strict liability, see section 6.1 of the Criminal Code.
(2)The engine may be started or run while the aircraft is inside or outside Australian territory if the control seat is occupied by an approved person or by a person who may, under Part 5, fly the aircraft.
(3)If the aircraft is an aeroplane that is having maintenance carried out on it, or that is being used for the provision of maintenance training, the engine may be started or run if the control seat is occupied:
(a) whether the aircraft is inside or outside Australian territory — by a person who:
(i) holds:
(A) an aircraft engineer licence that permits him or her to perform maintenance certification for maintenance carried out on the engine; or
(B) an airworthiness authority covering the maintenance; and
(ii) has sufficient knowledge of the aircraft’s controls and systems to ensure the starting or running does not endanger any person or damage the aircraft; or
(b) if the aircraft is outside Australian territory — by a person who:
(i) if the aircraft is in a Contracting State — may under the law of the Contracting State start or run engines of the same type in connection with the carrying out of maintenance, or the provision of maintenance training, as the case requires; or
(ii) has qualifications that are recognised by CASA as adequate for the purpose of starting or running engines of aircraft of the same type in connection with the carrying out of maintenance, or the provision of maintenance training, as the case requires
231 Manipulation of propeller
(1)In spite of regulations 225 and 230 and subregulation (2), the pilot in command of an aircraft which requires an operating crew of only one pilot may manipulate the propeller of the aircraft for the purposes of starting the aircraft if:
(a) assistance is not readily available for that purpose;
(b) adequate provision is made to prevent the aircraft moving forward; and
(c) no person is on board the aircraft.
(2)The registration holder, or operator, or the pilot in command, of an Australian aircraft must not permit a person to manipulate the propeller of the aircraft to start the engine if the registration holder, operator or pilot in command is not satisfied that the person who is to manipulate the propeller knows the correct starting procedures for the aircraft.
Penalty: 25 penalty units.
(3) An offence against subregulation (2) is an offence of strict liability.
Note For strict liability, see section 6.1 of the Criminal Code.
....so there you have it.