California Code, Labor Code - LAB § 102

The sheriff or marshal shall specify when the summons or process is returned, what costs he or she would ordinarily have been entitled to for such service, and those costs and the other regular court costs that would have accrued if the action was not by the Labor Commissioner shall be made a part of any judgment recovered by the Labor Commissioner and shall be paid by the Labor Commissioner if sufficient money is collected over and above the wages, penalties, or demands actually due the claimants.