2010 Pennsylvania Code
Title 23 - DOMESTIC RELATIONS
Chapter 33 - Dissolution of Marital Status
3307 - Defenses.

     § 3307.  Defenses.
        (a)  General rule.--Existing common-law defenses are retained
     as to the grounds enumerated in section 3301(a) and (b)
     (relating to grounds for divorce). The defenses of condonation,
     connivance, collusion, recrimination and provocation are
     abolished as to the grounds enumerated in section 3301(c) and
     (d).
        (b)  Adultery.--In an action for divorce on the ground of
     adultery, it is a good defense and a perpetual bar against the
     action if the defendant alleges and proves, or if it appears in
     the evidence, that the plaintiff:
            (1)  has been guilty of like conduct;
            (2)  has admitted the defendant into conjugal society or
        embraces after the plaintiff knew of the fact;
            (3)  allowed the defendant's prostitution or received
        hire from it; or
            (4)  exposed the defendant to lewd company whereby the
        defendant became involved in the adultery.