A subscribing witness's testimony is necessary to authenticate a writing only if required by the law of the jurisdiction that governs its validity.
Del. R. Evid. 903
Comment
This rule tracks F.R.E. 903.
D.R.E. 903 was amended in 2017 in response to the 2011 restyling of the Federal Rules of Evidence. The amendment is intended to be stylistic only. There is no intent to change any result in ruling on evidence admissibility.