90. Swearing of interpreter and shorthand writer. —(1) At any time during the trial an impartial person may, if the court thinks it necessary and shall, if either the prosecutor or the accused requests it on any reasonable ground, be sworn or affirm to act as interpreter.
(2) An impartial person may at any time of the trial, if the court thinks it desirable, be sworn or affirm to act as a shorthand writer.
(3) Before a person is sworn or affirmed as an interpreter or shorthand writer the accused shall be informed of the person who is proposed to be sworn or affirmed, and may object to the person as not being impartial or for any reasonable course; and the court, if it thinks that the objection is reasonable, shall not swear or affirm that person as interpreter or shorthand writer.
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