17. Summons. - A summons issued by a Board, Court, Labour Court or Tribunal shall be in form ‘D’ and may require any person to produce before it any books, papers other documents and things in the possession of or under the control of such person in any way relating to the matter under investigation or adjudication by the Board, Court, Labour Courts or Tribunal which the Board, Court, Labour Court or Tribunal thinks necessary for the purposes of such investigation or adjudication.
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