In this chapter,
(1) “crime involving domestic violence” has the meaning given in AS 18.66.990;
(2) “person acting on behalf of a defendant” includes the defendant's attorney, an agent of the defendant or the defendant's attorney, or a person specified by the court under AS 12.61.120(b) or an agent of that person, but does not include the defendant;
(3) “victim” has the meaning given in AS 12.55.185;
(4) “witness” means a person contacted in connection with a criminal case because the person may have knowledge or information about the criminal case.