[QUOTE=Campion]
There are two forms of spousal privilege: a communication privilege and a testimonial privilege. Under the communication privilege, a spouse may not be compelled to testify about a marital communication, nor can a spouse be permitted to testify about a marital communication without the other spouse’s assent (some states do not include this last element, but instead make it optional). This protects the sanctity of communications within the marriage.
Under the testimonial privilege, a spouse may not testify against his/her partner without that partner’s permission. Think of it as a veto power – even if a husband wants to testify against his wife, he cannot do so without her permission. This protects the sanctity of marriage itself, because the state cannot pit one spouse against another.
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Generally speaking the communication privilege can only be waived by the non-testifying spouse while the tesimonial privilege can be waived by the testifying spouse. Of course this varies state by state but this is the traditional way the privilege is formulated.
Translation into English:
Husband tells wife he hates his neighbor. Then wife sees husband punch neighbor in the face.
As to what the husband told the wife, the husband holds the privilege, and, unless he waives it, the wife cannot testify as to what he told her even if she wants to. (Note that there is an exception if the wife wants to testify about, say, a time when husband threatened her directly).
As to what the wife saw the husband do, it is up to the wife whether she wants to testify about what she saw. If she wants to, she can testify and the husband has no legal right to stop her. On the other hand, she can assert the testimonial privilege and say, I’m not going to testify against my husband.
Generally speaking the communication survives divorce. So, in the above hypo, if husband and wife are now divorced, ex-wife STILL cannot testify as to what ex-husband told her, unless he waives the privilege. The purpose of this privilege is to encourage spouses to communicate freely with each other without fear that what they say will be disclosed. If the privilege went away as soon as the divorce was final, spouses would be less likely to speak freely with each other while married (or so goes the theory).
The testimonial privilege generally does NOT survive divorce. If now ex-wife doesn’t want to testify regarding what she saw then husband but now ex-husband do, then she cannot assert the marital privilege. The idea behind the testimonial privilege is that it would cause dissension in a marriage if one spouse testified against another. But, if there is no marriage, then there is no need to worry about dissension.
Not sure what happens in the case of an annulment. My guess would be that it is treated like a divorce, but I don’t know.