A person who—
(a) wilfully prevents any police officer, duly authorised in that behalf, from entering any building or premises suspected to be used as a brothel; or
(b) uses any means or contrivance whatsoever for the purpose of preventing, obstructing, or delaying the entry of any such police officer into such building or premises,
is liable on summary conviction to a fine of $1,000, or to imprisonment for 3 months.