W. Va. Code § 4-1A-10: Administrative acts are not immune.

(a) Legislative immunity does not extend to activities by legislators that are administrative in nature rather than legislative. If the underlying facts on which a decision is based are legislative facts involving establishment of a general policy or state of affairs, then the decision is legislative. If the facts used in the decision making are more specific, such as those that relate to particular individuals or situations, then the decision is administrative.

(b) With regard to legislative personnel matters, whether a personnel decision regarding a legislative employee is shielded by legislative immunity depends upon the nature of the duties of the employee about whom the personnel decision is made. Personnel decisions regarding a legislative employee are afforded immunity if the employee's duties are directly related to the functioning of the legislative process and the duties:

(1) Involve work that significantly informs or influences the shaping of laws, such as when the employee has an opportunity for meaningful input into the legislative process; or

(2) Are peculiar to a legislator's work as a legislator or intimately cognate to the legislative process.