“(1) will the proposed [order] be an interference by a public authority with the exercise of the applicant’s right to respect for his private...life ? (2) if so, will such interference have consequences of such gravity as potentially to engage the operation of article 8 ? (3) if so, is such interference in accordance with the law ? (4) if so, is such interference necessary in a democratic society in the interests of….the prevention of disorder or crime….. ? (5) if so, is such interference proportionate to the legitimate public end sought to be achieved ?”