In the trial of the cause in the superior court the cause shall be advanced and take precedence over all other causes upon the court calendar, and shall be heard at the next session after the petition is filed, provided the proceedings are filed in said court in time for said action to be heard. The superior court shall fix the time of hearing. If the final termination of such proceedings be favorable to any accused officer, said officer shall be allowed the reasonable and necessary expense, including a reasonable attorney fee, to be fixed by the judge, he has incurred in making his defense, by the county, if he be a county officer, or by the city or town in which he holds office, if he be a city officer. If the action is instituted upon the complaint of citizens as herein provided, and it appears to the court that there was no reasonable cause for filing the complaint, the costs may be taxed against the complaining parties. (P.L. 1913, c. 761, s. 24; 1919, c. 288; C.S., s. 3212; 1973, c. 108, s. 83.)