In this chapter, unless the context requires otherwise,


(1) "improperly influence a witness" means to cause or induce a witness to


(A) testify falsely, offer misleading testimony, or unlawfully withhold testimony in an official proceeding;


(B) avoid or attempt to avoid legal process summoning the witness to testify in an official proceeding, regardless of whether legal process has issued;


(C) be absent from an official proceeding to which the witness has been summoned; or


(D) engage in conduct described in AS 11.56.610
;


(2) "judicial officer" means a supreme court justice, including the chief justice, a judge of the court of appeals, a judge of the superior court, a district court judge, or a magistrate;


(3) "juror" means a person who is a member of an impanelled jury or a person who has been drawn or summoned to attend as a prospective juror;


(4) "physical evidence" means an article, object, document, record, or other thing of physical substance;


(5) "testimony" means oral or written statements, documents, or other material that may be offered by a witness in an official proceeding;


(6) "witness" means


(A) a witness summoned or appearing in an official proceeding; or


(B) a person who the defendant believes may be called as a witness in an official proceeding, present or future.