W. Va. Code § 47-20-16
Any licensee which holds a bingo occasion as provided by this article shall maintain a separate checking account and separate bookkeeping procedure for its bingo operations: Provided, That nothing in this article restricts a licensee from transferring moneys in the account from a bingo occasion to an account created under section sixteen, article twenty-one of this chapter in an amount not to exceed the actual loss of the raffle occasion receiving the transfer: Provided, however, That money transferred shall be withdrawn only by checks having preprinted consecutive numbers and made payable to the account created under section sixteen, article twenty-one of this code. Money for expenses shall be withdrawn only by checks having preprinted consecutive numbers and made payable to a specific person, firm or corporation and at no time shall a check be made payable to cash. A licensee shall maintain all records required by this article for at least three years and the records shall be open to the commissioner for reasonable inspection. Whenever the tax commissioner has reasonable cause to believe a licensee has violated any of the provisions of this article, he or she may perform or cause to be performed an audit of the licensee's books and records: Provided further, That the tax commissioner shall perform or cause to be performed an audit of the books and records of any licensee that has awarded total prizes in excess of one hundred seventy-five thousand dollars. The tax commissioner shall file a copy of the completed audit with the county commission of the county wherein the licensee holds bingo occasions.
W. Va. Code § 47-20-16