It seems that minimum safety standards may only fully be achieved through the development of legislative measures one of the defficulties with legislation is that it is generally national rather than international and this leads to even more inconsistency hibbert's (2001) work (see Chapter 8) highlights several inconsistencies in the safety measures used by mountain adventure tour operators that offer international trips andexpeditional for instance companies employed different systems for grading their trips and assessing their clients not all operatours transferred rick to third parties in the same way and emergency plans sometime differed according to destination