Does spousal immunity work if the crime was committed before the marriage?

Spousal immunity generally protects one spouse from being compelled to testify against the other in a criminal case. However, this protection typically applies only to communications made during the marriage, not to actions or crimes that occurred before the marriage. Therefore, if a crime was committed before the marriage, spousal immunity would not apply, and the spouse could be required to testify about those past actions. The specific rules can vary by jurisdiction, so it's important to consider local laws.