(cf Coroners Act 1980 , s 31)
(1) The coroner in coronial proceedings may examine on oath or affirmation all persons who--(a) tender evidence relevant to the proceedings, or(b) are able, in the opinion of the coroner, to give evidence relevant to the proceedings.
(2) For the purposes of subsection (1), the coroner--(a) may require a person who appears in the proceedings to give evidence to take an oath or to make an affirmation in a form approved by the coroner, and(b) may administer an oath to, or take an affirmation from, a person appearing in the proceedings.