W. Va. Code § 17C-25-7: Right to demand test.

Any person lawfully arrested for operating an aircraft in this state while under the influence of alcohol, controlled substances, or drugs has the right to demand that a sample or specimen of his or her breath, blood, or urine be taken within two hours from and after the time of arrest and that a chemical test be performed. The analysis disclosed by the chemical test shall be made available to the arrested person immediately upon demand.