2Carrying firearms in a public place
Any person who without lawful authority or reasonable excuse, the proof whereof shall he on him, has with him in a public place any loaded shot gun or loaded air weapon or any other firearm (whether loaded or not) together with ammunition suitable for use in that firearm shall—
(a)be liable on summary conviction to imprisonment for a term not exceeding six months or a fine not exceeding two hundred pounds or both;
(b)unless the firearm is an air weapon, be liable on conviction on indictment to imprisonment for a term not exceeding five years or a fine or both.