1) For the purposes of conducting an investigation in terms of section 52(1), the Director-General may--
a) question any person who may be able to provide information relevant to any investigation; or
b) require, in writing, any employer or employee in a sector and area that is being investigated or any other person to furnish any information, book, document or object that is material to the investigation within a specified period, which must be reasonable.
2) A person may not refuse to answer any relevant question by the Director-General that he or she is legally obliged to answer.