#witness  (law) a person who testifies under oath in a court of law
  supertype:  #person__individual__someone__somebody__mortal__human__human_being__humanbeing__soul  a human being; "there was too much for one person to do"
  subtype:  #adverse_witness__adversewitnes__hostile_witness  a witness whose relationship to the opposing party is such that his or her testimony may be prejudiced against the opposing party; "a hostile witness can be asked leading questions and cross-examined"
  subtype:  #character_witness__characterwitnes  a witness who testifies under oath as to the good reputation of another person in the community where that person lives
  subtype:  #expert_witness  a witness who has knowledge not normally possessed by the average person concerning the topic that he is to testify about
  subtype:  #lay_witness__laywitnes  any witness who does not testify as an expert witness
  subtype:  #material_witness  a witness whose testimony is both relevant to the matter at issue and required in order to resolve the matter

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