Crown  of  certain  lands  in  the  state-owned  enterprises  contravened  s9.⁴    The  judgments wrestling  with  the  principles  of  the  Treaty  are  no  less  controversial  today  than  they  were when they were issued.  Many statutes enacted subsequently have referred to the principles but still in none have they been defined. A lack of definition in international instruments can also be problematic for domestic courts.   Everyone has the right to be free from unreasonable search and seizure under s21 of the New Zealand Bill of Rights Act.  That comes from Art 14 of the International Covenant on Civil and  Political  Rights.    For  the  last  10  years  and  more  our  courts  have  wrestled  with  what comes within the concept of search and what is unreasonable. Another example with potential for litigation is in the 2002 New Zealand Trade Marks Act.   Section  94  excludes  from  infringement  the  use  of  a  registered  trade  mark  in  comparative advertising.  The section continues however with this: … but any such use otherwise than in accordance with honest practices in industrial or commercial matters must be treated as infringing the registered trade  mark  if  the  use,  without  due  cause,  takes  unfair  advantage  of,  or  is detrimental to, the distinctive character or the repute of the trade mark. The phrase “honest practices in industrial or commercial matters” comes from the 1883 Paris Convention on Industrial Property.  It was taken into the United Kingdom Trade Marks Act 1994 and adopted in New Zealand from there.  Just what it meant in 1883 and what it means today, and what “undue cause” and “unfair advantage” mean, remains to be seen. Interpretation of such language, when it gives rise to competing views, provides ammunition to dissatisfied litigants whose aim generally is at the judges.  But it really should be seen as part of the total legal performance dictated by Parliament. The importation of the broad language of international instruments raises another issue, that of access to law.  It has been highlighted for me over the last decade in the area of human rights.    Accession  to,  and  incorporation  of,  the  major  international  instruments  with  their broad statements of individual rights and freedoms in constitutions or statutes will be familiar to  most  of  you.    In  litigation  raising  issues  as  to  the  content  and  scope  of  these  rights  and 4 New Zealand Maori Council v Attorney-General [1987] 1 NZLR 641.