Who can act as an invigilator?

An Invigilator for a Learner must be either (a) an Officer on board the vessel, or at the physical venue, or (b) someone of good standing, or holds an official qualification or officially recognised professional qualification, or service recognition such as a Doctor, Police Officer, Lawyer, Solicitor, etc.

An Invigilator cannot be (a) a member of the family, (b) same or lower rank, or (c) someone without an officially recognised professional qualification, or service recognition as mentioned above.