It is legally correct for someone to be able to sign a warrant for a misdemeanor that they witnessed. However, the Retired Game Warden, as stated in Court, only heard shots- His deposition on the warrant states that he witnessed them shoot the gun. Does hearing a noise and seeing a vehicle near by constitute "witnessing" a misdemeanor?

If simply hearing a shot, or loud noise, and seeing a vehicle nearby gives you the right to sign a warrant on someone then we are all in big trouble.