W. Va. Code § 3-7-6
In all cases of contested elections, the county commission shall be the judge of the election, qualifications and returns of their own members and of all county and district officers: Provided, That a member of the county commission whose election is being contested may not participate in judging the election, qualifications and returns.
A person intending to contest the election of another to any county or district office, including judge of any court or any office that shall hereafter be created to be filled by the voters of the county or of any magisterial or other district therein, shall, within ten days after the result of the election is certified, give the contestee notice in writing of such intention and a list of the votes he will dispute, with the objections to each, and of the votes rejected for which he will contend. If the contestant objects to the legality of the election or the qualification of the person returned as elected, the notice shall set forth the facts on which such objection is founded. The person whose election is so contested shall, within ten days after receiving such notice, deliver to the contestant a like list of the votes he will dispute, with the objections to each, and of the rejected votes for which he will contend; and, if he has any objection to the qualification of the contestant, he shall specify in writing the facts on which the objection is founded. Each party shall append to his notice an affidavit that he verily believes the matters and things set forth to be true. If new facts be discovered by either party after he has given notice as aforesaid, he may, within ten days after such discovery, give an additional notice to his adversary, with the specifications and affidavit prescribed in this section.
The provisions of this section apply to all elections, including municipal elections, except that the governing body of the municipality is the judge of any contest of a municipal election.
W. Va. Code § 3-7-6