112 - Former prosecution before court lacking jurisdiction or when fraudulently procured by the defendant.

     § 112.  Former prosecution before court lacking jurisdiction or                when fraudulently procured by the defendant.        A prosecution is not a bar within the meaning of section 109     of this title (relating to when prosecution barred by former     prosecution for the same offense) through section 111 of this     title (relating to when prosecution barred by former prosecution     in another jurisdiction) under any of the following     circumstances:            (1)  The former prosecution was before a court which        lacked jurisdiction over the defendant or the offense.            (2)  The former prosecution was procured by the defendant        without the knowledge of the appropriate prosecuting officer        and with the purpose of avoiding the sentence which might        otherwise be imposed.            (3)  The former prosecution resulted in a judgment of        conviction which was held invalid in a subsequent proceeding        on a writ of habeas corpus, coram nobis or similar process.