Saint Jack,
JAR-OPS 3.210(d) (CAT):
(d) An operator shall not permit a helicopter rotor to be turned under power for the purpose of flight without a qualified pilot at the controls
ICAO Annex 6 Part III, Section II, Chapter 2.2.4.2 (CAT):
2.2.4.2 A helicopter rotor shall not be turned under power, for the purpose of flight, without a qualified pilot at the controls. The operator shall provide appropriately specific training and procedures to be followed for all personnel, other than qualified pilots, who are likely to carry out the turning of a rotor under power for purposes other than flight.
ICAO Annex 6 Part III, Section III, Chapter 2.17 (GA):
A helicopter rotor shall not be turned under power for the purpose of flight without a qualified pilot at the controls.
Jim