The university Vice-Chancellor, Peter Knight, took the view—supported by the Senate—that the book was a legitimate book for the university library to hold and that the action of the police was a serious infringement of academic freedom. The Vice-Chancellor was interviewed by the police, under caution, with a view to prosecution under the terms of the Obscene Publications Act, which defines obscenity as material that is likely to deprave and corrupt. The police focused on one particular image, 'Jim and Tom, Sausalito 1977', which depicts one man urinating into the mouth of another.