Western Australian Current Regulations Western Australian Current Regulations A prosecutor must call
as part of the prosecution’s case all witnesses:
(a)
whose testimony is admissible and necessary for the presentation of all of the
relevant circumstances, or
(b)
whose testimony provides reasonable grounds for the prosecutor to believe that
it could provide admissible evidence relevant to any matter in issue,
unless:
(i)
the opponent consents to the prosecutor not calling a
particular witness,
(ii)
the only matter with respect to which the particular
witness can give admissible evidence has been dealt with by an admission on
behalf of the accused,
(iii)
the only matter with respect to which the particular
witness can give admissible evidence goes to establishing a particular point
already adequately established by another witness or other witnesses,
(iv)
the prosecutor believes on reasonable grounds that the
testimony of a particular witness is plainly untruthful or is plainly
unreliable, or
(v)
the prosecutor, having the responsibility of ensuring
that the prosecution case is presented properly and presented with fairness to
the accused, believes on reasonable grounds that the interests of justice
would be harmed if the witness was called as part of the prosecution case.