(1) "Juror" means any person who is a member of any jury or grand jury impaneled by any court of this state or by any public servant authorized by law to impanel a jury. The term "juror" also includes any person who has been drawn or summoned to attend as a prospective juror.
(2) "Testimony" includes oral or written statements, documents, or any other evidence that may be offered by or through a witness in an official proceeding.