Sec. 21-8. Witnesses for state not to be prosecuted.
               	 		
      Sec. 21-8. Witnesses for state not to be prosecuted. No person who testifies for 
the state in any prosecution for any unlawful exhibition or erection or construction 
therefor or forfeiture accruing therefrom shall thereafter be prosecuted for anything 
about which he has so testified.
      (1949 Rev., S. 4646.)