301.4 Instruction Regarding Visual or Demonstrative Aids a. Generally: This witness will be using (identify demonstrative or visual aid(s)) to assist in explaining or illustrating [his] [her] testimony. The testimony of the witness is evidence; however, [this] [these] (identify demonstrative or visual aid(s)) [is] [are] not to be considered as evidence in the case unless received in evidence, and should not be used as a substitute for evidence. Only items received in evidence will be available to you for consideration during your deliberations. b. Specially created visual or demonstrative aids based on disputed assumptions: This witness will be using (identify demonstrative aid(s)) to assist in explaining or illustrating [his] [her] testimony. [This] [These] item[s] [has] [have] been prepared to assist this witness in explaining [his] [her] testimony. [It] [They] may be based on assumptions which you are free to accept or reject. The testimony of the witness is evidence; however, [this] [these] (identify demonstrative or visual aid(s)) [is] [are] not to be considered as evidence in the case unless received in evidence, and should not be used as a substitute for evidence. Only items received in evidence will be available to you for consideration during your deliberations.