The parties receiving instruction can expect to receive a high duty of care in the areas the volunteer instructor is qualified in.
The parties receiving instruction can expect a lower duty of care than a professional instructor when the volunteer instructor is in the process of becoming a qualified instructor and is getting experience for their log, and is therefore not qualified, the participant can expect a lower duty of care.
The instructor must declare they are not qualified in these relevant activities otherwise a participant could claim in court that they expected a higher duty of care.