11.—A person who—

(a) keeps or manages or acts or assists in the management of a brothel,

(b) being the tenant, lessee, occupier or person in charge of a premises, knowingly permits such premises or any part thereof to be used as a brothel or for the purposes of habitual prostitution, or

(c) being the lessor or landlord of any premises or the agent of such lessor or landlord, lets such premises or any part thereof with the knowledge that such premises or some part thereof are or is to be used as a brothel, or is wilfully a party to the continued use of such premises or any part thereof as a brothel,

shall be guilty of an offence and shall be liable—

F11[(i) on summary conviction to a class A fine or imprisonment for a term not exceeding 12 months or both, or]

(ii) on conviction on indictment to a fine not exceeding £10,000 or to imprisonment for a term not exceeding 5 years or to both.