3.30.1 Evidence given in accordance with these rules before any Registrar may be tendered in the proceeding in respect of which the examination took place as if the evidence were given in the course of the hearing of that proceeding, and the signature of the Registrar to the deposition must be judicially noticed without any proof of it.
3.30.2 On the application of the opposite party and on being satisfied that the party securing an order for examination is not proceeding with due diligence to implement the order, the court may rescind the order and make any other order that it thinks fit in the interests of justice.
3.30.3 If, in the opinion of the court, the credibility of a witness whose evidence has been taken at a distance is likely to be of decisive importance, the court may decline to accept the deposition and require the party tendering it to call the witness to give oral evidence at the hearing.