An indictment or information for perjury alleging that the offender, under oath, has knowingly made contradictory statements, material to the issue or point in question, in the same or in different proceedings, where the oath or affirmation is required, need not specify which statement is false. At the trial, the prosecution need not establish which statement is false.
Where the contradictory statements are made in the same continuous trial, an admission by the offender in that same continuous trial of the falsity of a contradictory statement shall bar prosecution therefor under any provisions of this Code.
Perjury is a Class 3 felony.
720 ILCS 5/32-2