Indiana Code Title 35. Criminal Law and Procedure § 35-34-1-10

Sec. 10. (a) When a defendant has been charged with two (2) or more offenses in two (2) or more indictments or informations and the offenses could be joined in the same indictment or information under section 9(a)(1) of this chapter, the court, upon motion of the defendant, may order that the indictments or informations be joined for trial.  Such motion shall be made before commencement of trial on either of the offenses charged.

(b) When a defendant has been charged with two (2) or more offenses in two (2) or more indictments or informations and the offenses could have been joined in the same indictment or information under section (9)(a)(2) of this chapter, the court, upon motion of the defendant or the prosecuting attorney, or on its own motion, shall join for trial all of such indictments or informations unless the court, in the interests of justice, orders that one (1) or more of such offenses shall be tried separately.  Such motion shall be made before commencement of trial on either of the offenses charged.

(c) A defendant who has been tried for one (1) offense may thereafter move to dismiss an indictment or information for an offense which could have been joined for trial with the prior offenses under section 9 of this chapter.  The motion to dismiss shall be made prior to the second trial, and shall be granted if the prosecution is barred by reason of the former prosecution.

(d) A defendant who has been sentenced on a plea of guilty to one (1) offense may move to dismiss an indictment or information for a related offense.  The motion shall be granted if the plea of guilty was entered on the basis of a plea agreement in which the prosecutor agreed to seek or not to oppose dismissal of other related offenses or not to prosecute other potential related offenses.

(e) Subject to the provisions of section 11(a) of this chapter, two (2) or more offenses which are within the jurisdiction of the same court and which could have been joined in one (1) prosecution constitute related offenses.