It is an offence to sell or let on hire any firearm or ammunition to a person under the age of eighteen.
It is an offence—
It is an offence to make a gift of a shot gun or ammunition for a shot gun to a person under the age of fifteen.
It is an offence—
In proceedings for an offence under any provision of this section it is a defence to prove that the person charged with the offence believed the other person to be of or over the age mentioned in that provision and had reasonable ground for the belief.