(1) Indictments returned by a grand jury shall be presented by their foreman to the court and shall be filed with the clerk, who shall endorse thereon the day of their filing and shall enter each case upon the register of actions and the date when the parties indicted have been arrested.
(2) Any grand jury may indict a person for an offense when the evidence before such grand jury provides probable cause to believe that such person committed such offense.
(3) The district court before which the indicted defendant is to be tried shall dismiss any indictment of the grand jury if such district court finds, upon the filing of a motion by the indicted defendant based upon the grand jury record without argument or further evidence, that the grand jury finding of probable cause is not supported by the record.
(4) Any other motions testing the validity of the indictment may be heard by the court based only on the record and argument of counsel, unless there is cause shown for the need for additional evidence.