Criminal Procedure
Section 14. Amendment or substitution. - A complaint or information may be amended, in form or in substance, without leave of court, at any time before the accused enters his plea. After the plea and during the trial, a formal amendment may only be made with leave of court and when it can be done without causing prejudice to the rights of the accused.
However, any amendment before plea, which downgrades the nature of the offense charged in or excludes any accused from the complaint or information, can be made only upon motion by the prosecutor, with notice to the offended party and with leave of court. The court shall state its reasons in resolving the motion and copies of its order shall be furnished all parties, especially the offended party. (n)
If it appears at any time before judgment that a mistake has been made in charging the proper offense, the court shall dismiss the original complaint or information upon the filing of a new one charging the proper offense in accordance with section 19, Rule 119, provided the accused shall not be placed in double jeopardy. The court may require the witnesses to give bail for their appearance at the trial. (14a)