(1) It shall not be lawful for any person to send or bring into any registered premises any person under the age of eighteen years other than persons ordinarily resident in such premises.

(2) Every person (other than the registered proprietor of the registered premises concerned) who sends or brings any person into registered premises in contravention of this section shall be guilty of an offence under this section and shall be liable on summary conviction thereof, in the case of a first offence, to a class E fine or, in the case of a second or any subsequent offence, to a class D fine or, at the discretion of the court, to imprisonment for any term not exceeding three months or to both such fine and such imprisonment.