W. Va. Code § 52-1-23: Length of service by jurors.

In any two-year period a person may not be required:

(1) To serve or attend court for prospective service as a juror more than thirty court days, except if necessary to complete service in a particular case;

(2) To serve on more than one grand jury;

(3) To serve as both a grand and petit juror; or

(4) To serve as a petit juror at more than one term of court.