Review / Committee required production of a letter / Evidence Act 2006 section 51 / Lawyers and Conveyancers Act 2006 section 151 / Lawyers and Conveyancers Act (Lawyers: Conduct and Client Care) Rules 2008 rule 8.7 / Without Prejudice privilege / B v Auckland District Law Society [2004] 1 NZLR 326 (PC) / Complaints Assessment Committee v Medical Practioner’s Disciplinary Tribunal [2006] NZSC 48, [2006] 3 NZLR 577 / Cutts v Head [1984] Ch 290 (CA) / Unilever PLC v Proctor and Gamble Co [2000] 1 WLR 2436 (CA) / HELD / Committee can require production of “without privilege” communication / Committee’s decision confirmed / section 211(1)(a)