When can’t someone testify in his own defense?

His attorney argues in a brief that Anthony’s “behavior was never so disruptive, obscene, or violent to merit removing him from his trial.”

“The issue,” the brief suggests, “is whether Wisconsin wants to go further than any other court has gone, allowing displeased trial judges to strip away a defendant’s right to testify as a preemptive and protective measure,” when a standard for disruptiveness, described in an earlier case, has not been met.

Via Supreme Court hears appeal of defendant denied chance to testify in his own defense @ JS Proof and Hearsay Blog.