1.  A witness may not testify to a matter unless:

Terms Used In Nevada Revised Statutes 50.025

  • Testify: Answer questions in court.
  • Testimony: Evidence presented orally by witnesses during trials or before grand juries.

(a) Evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter; or

(b) The witness states his or her opinion or inference as an expert.

2.  Evidence to prove personal knowledge may, but need not, consist of the testimony of the witness.