A legal finding of connivance may be made when an accuser has assisted in the act about which they are complaining. In some legal jurisdictions, and for certain behaviors, it may prevent the accuser from prevailing.

For example, if someone were to entice their spouse to commit adultery

Adultery

Adultery is sexual infidelity to one's spouse, and is a form of extramarital sex. It originally referred only to sex between a woman who was married and a person other than her spouse. Even in cases of separation from one's spouse, an extramarital affair is still considered adultery.Adultery is...

, they might be blocked (or estopped

Estoppel

Estoppel in its broadest sense is a legal term referring to a series of legal and equitable doctrines that preclude "a person from denying or asserting anything to the contrary of that which has, in contemplation of law, been established as the truth, either by the acts of judicial or legislative...

) from divorcing their spouse on grounds of that adultery. See Sargent v. Sargent, Court of Chancery of New Jersey, 1920 (Held a man who had not taken active steps to prevent his wife's adultery was not entitled to divorce because he was a participator and consenter to her adultery).

Connivance is the act of conniving or conspiring, especially with the knowledge of and active or passive consent to wrongdoing or a twist in truth, to make something appear as something that it is not.