Obscene Publications Squad
(əbˈsiːn ˌpʌblɪˈkeɪʃənz skwɒd)
noun law, Britisha division of the police force which deals with illegal books, pictures, or films which are judged obscene because they deal with sex or violence in a way that is considered offensive to the general public
The files contain the statement of the head of Scotland Yard's obscene publicationssquad, who raided the gallery and seized the prints.