It shall not be necessary to prove by the attesting witness any instrument to the validity of which attestation is not requisite; and such instrument may be proved by admission, or otherwise, as if there had been no attesting witness thereto.
W. Va. Code § 57-2-2
When attesting witness need not be called
Official source: West Virginia Legislature. Reproduced from public-domain West Virginia statutes; confirm against the official source for the current text. Not legal advice.