Interrogatories may be annexed to the commission.
Section 357
SEC. 357. Interrogatories may be annexed to the commission. — Such proper interrogatories, direct and cross, as the respective parties may prepare to be settled, if the parties disagree as to their form, by the judge or officer granting the order for the commission, at a day fixed in the order, may be annexed to the commission; or, when the parties agree to that mode, the examination may be oral and without written interrogatories.