Consorting with persons carrying arms
7.  Any person who consorts with, or is found in the company of, another person who is unlawfully carrying or is in unlawful possession of any arm in circumstances which raise a reasonable presumption that he knew that that other person was carrying or had in his possession or under his control any such arm shall, unless he proves that he had reasonable grounds for believing that that other person was not unlawfully carrying or not in unlawful possession of such arm, be guilty of an offence and shall be liable on conviction to the like punishment as that other person with whom he was consorting or in whose company he was found.