(1) A person shall not obstruct or impede the Court or an Inspector of Accidents or an Assessor or any person acting under the authority of the Minister or the appropriate authority in the exercise of any powers or duties under these Regulations.
(2) A person shall not without reasonable excuse (proof whereof shall lie on him) fail after having had the expenses (if any) to which he is entitled tendered to him, to comply with any summons or requisition of the Court holding a Public inquiry or an Inspector of Accidents holding an Inspector's Investigation under these Regulations.