Legal Professional Privilege ; Battery Group Ltd. v. FAI General Insurance Co. Ltd. (unreported, 21 May1993, F3748, Hedigan J.) ; Calcraft v. Guest [1898] Q.B. 759 ; Home Office v. Harman [1983] 1 A.C. 280 ; Telebooth Pty. Ltd. v. Telstra Corporation Ltd. (unreported, 17 August 1993,F3939, Hedigan J.) ; Kalinko v. Shriar Nominees Pty. Ltd. (unreported, 16 February 1990, TadgellJ.) ; Vauxhall Water Company v. Quick (1878) 3 Q.B.D. 315 ;