the committee now says it will not look into specific cases - such as alleged hacking of mps ' phones by news of the world journalists - but instead question experts on whether hacking amounts to contempt of parliament . if the committee decides that phone hacking does not amount to contempt it would be expected to hold only a brief inquiry , and would be unlikely to call any witnesses from the news of the world . former news of the world said peter lodder qc , a criminal barrister . it also emerged today that sean hoare , a former news of the world journalist who told the new york times and the bbc about hacking at the paper under coulson , has been interviewed by police under caution . mr hoare alleged in a recent interview with a us newspaper that his former editor at the news of the world , andy coulson , asked him to hack phones . sienna miller was today expected to become the latest public figure to join the legal assault on scotland yard and the news of the world over the phone - hacking scandal . paul mcmullan , a second former news of the world staffer who told the guardian that hacking was rife at the paper , was also contacted by detectives and told that police quiz ex - news of the world reporter over hacking andy coulson has denied mr hoare 's claims continue reading the main story related stories the former news of the world reporter at the centre of phone hacking allegations has been questioned by police , his solicitor has said . sean hoare 's claims , is now prime minister david cameron 's communications chief . earlier on tuesday , parliament 's standards and privileges committee said it would launch an inquiry into whether the hacking of mps phones amounts to contempt of parliament .