whether it could properly be said that it's a duty because it's not, it's a guide, er the question arises as to whether it's a duty but of course it's here, it's always been in the expert's report incorporated in it the reference to it  erm  but er  lord in my submission  er it is undoubtedly correct that your lordship would be greatly helped by hearing evidence from a solicitor engaged regularly, frequently, in commercial conveyancing work as to what the extent of the practice, the accepted practice and the professional  standards operated by solicitors in this field and