25. No person may,
(a) in or on a vehicle or aircraft, have in his possession, keep or transport a loaded firearm;
(b) in or on a vehicle or aircraft, have in his possession, or transport an unloaded firearm, unless it is placed in a closed case or kept in the trunk of a vehicle;
(c) fire a shot from a vehicle or aircraft.
This section shall not apply to any person who by reason of his employment or duties is authorized by law to be in possession of a firearm or to transport such an arm.
1969, c. 58, s. 25; 1978, c. 65, s. 15.