1. The presence in any room, dwelling, structure or vehicle of any machine-gun is presumptive evidence of its unlawful possession by all persons occupying the place where such machine-gun is found.

2. The presence in any stolen vehicle of any weapon, instrument, appliance or substance specified in sections 265.01 , 265.02 , 265.03 , 265.04 and 265.05 is presumptive evidence of its possession by all persons occupying such vehicle at the time such weapon, instrument, appliance or substance is found.

3. The presence in an automobile, other than a stolen one or a public omnibus, of any firearm, large capacity ammunition feeding device, defaced firearm, defaced rifle or shotgun, defaced large capacity ammunition feeding device, firearm silencer, explosive or incendiary bomb, bombshell, gravity knife, switchblade knife, pilum ballistic knife, metal knuckle knife, dagger, dirk, stiletto, billy, blackjack, plastic knuckles, metal knuckles, chuka stick, sandbag, sandclub or slungshot is presumptive evidence of its possession by all persons occupying such automobile at the time such weapon, instrument or appliance is found, except under the following circumstances: (a) if such weapon, instrument or appliance is found upon the person of one of the occupants therein; (b) if such weapon, instrument or appliance is found in an automobile which is being operated for hire by a duly licensed driver in the due, lawful and proper pursuit of his or her trade, then such presumption shall not apply to the driver; or (c) if the weapon so found is a pistol or revolver and one of the occupants, not present under duress, has in his or her possession a valid license to have and carry concealed the same.

4. The possession by any person of the substance as specified in section 265.04 is presumptive evidence of possessing such substance with intent to use the same unlawfully against the person or property of another if such person is not licensed or otherwise authorized to possess such substance. The possession by any person of any dagger, dirk, stiletto, dangerous knife or any other weapon, instrument, appliance or substance designed, made or adapted for use primarily as a weapon, is presumptive evidence of intent to use the same unlawfully against another.

5. The possession by any person of a defaced machine-gun, firearm, rifle or shotgun is presumptive evidence that such person defaced the same.