Under United States law, an investigator`s notebook may be used in court in which of the following scenarios? 

Answer options:

A. When the investigator is unwilling to testify.
B. When other forms of physical evidence are not available.
C. To refresh the investigators memory while testifying.
D. If the defense has no objections.

C

An investigator`s notebook cannot be used as evidence is court. It can only be used by the investigator to refresh his memory during a proceeding, but cannot be submitted as evidence in any form. The following answers are incorrect: When the investigator is unwilling to testify. Is incorrect because the notebook cannot be submitted as evidence in any form. When other forms of physical evidence are not available. Is incorrect because the notebook cannot be submitted as evidence in any form. If the defense has no objections. Is incorrect because the notebook cannot be submitted as evidence in any form.