Can you be subpoena to court to testify against your husband in a child custody case when the child is your stepson?

Yes, you can be subpoenaed to testify in a child custody case even if the child is your stepson. While spousal privilege may protect certain communications between you and your husband, it does not necessarily apply to testimony regarding the child's welfare or circumstances. Courts prioritize the best interests of the child, so your testimony could be deemed relevant and necessary for making a custody decision. However, the specifics can vary depending on jurisdiction and the details of the case.