
Originally Posted by
s_cianci
The 5th amendment protects him from testifying against himself and/or his spouse. It doesn't protect him from testifying against anyone else. If he has been subpoenaed to testify against these people then for him not to do so would constitute contempt of court.
The fifth amendment protects against self-incrimination. If the testimony would incriminate the witness they don'thave to testify. For example:
Atty: what did you see on the night of...
Witness: The defendant was selling drugs
Atty: And what were you doing there at the time
Witness: I was his muscle
Since answering the first question would lead to self-incrimination the witness could plead the fifth.