"The court shall give such directions as it thinks fit for the hearing and determination of contempt proceedings, including directions for the attendance of witnesses and oral evidence as it considers appropriate."
"(3) The court may require or permit any party or other person (other than the respondent) to give oral evidence at the hearing. (4) The court may give directions requiring the attendance for cross-examination of a witness who has given written evidence."
"We do not consider it necessary to decide definitively whether a judge in civil proceedings has, at any event, since the introduction of the Civil Procedure Rules power to call a witness in circumstances where neither party wishes to call him. We observe that the position may differ depending on whether the suggestion that the witness be called is first made after final speeches or much earlier in the litigation."