The court may permit an information to be amended at any time before trial has commenced so long as the substantial rights of the defendant are not prejudiced. Within 21 days after removal, the removing party must file an amended notice containing the omitted information.(2) The prosecuting attorney may: (a) sign the information in the presence of a magistrate; or. The changes include the addition of new rules, renumbered rules, and rule eliminations and suspensions, all aimed at improving practice in the District of Utah. An answer may be amended once as a matter of course within no later than 21 days after the original answer is served. The decision about whether to provide a party leave to amend pleadings "is within the discretion of the trial court. The Risks of a Speedy Trial in Utah. Confirm Case Information. The Court may deem that counterclaim so amended pursuant to Rule 15(b), Federal Rules of Civil. Procedure, or Utah will file a Second Amended Counterclaim.