IN THE INVESTIGATORY POWERS TRIBUNAL (The President, the Vice-President and Sir David Calcutt QC) 31 March 2004 IN THE MATTER OF APPLICATION No IPT/03/01/CH RULINGS OF THE TRIBUNAL ON PRELIMINARY ISSUES OF LAW REPRESENTATION: Mr Andrew Nicol QC and Ms Henrietta Hill instructed by the Solicitor and Legal Director, Liberty (Human Rights Litigation Unit) for the Complainant Mr Philip Sales and Mr Ben Hooper instructed by the Treasury Solicitor for the Respondent