CRIMINAL LAW – trial on indictment before Supreme Court – subpoena directed to Commonwealth Director of Public Prosecutions – seeks production of notes of conferences between prosecuting counsel and solicitors and Crown witnesses – claim of client legal privilege – whether Part 3.10 Evidence Act 1995 or common law principles apply to privilege claim – relationship between client legal privilege and prosecution duty of disclosure – whether privilege waived by prosecution calling witnesses at committal proceedings or earlier trials of Accused – claim for privilege upheld