Techniques for Rescuing Stuck or Injured Climbers This book covers the basics of preparing for, practising and undertaking aerial rescue. Many rescue situations may arise to which arborists will be unable to respond without professional assistance. Nevertheless, the techniques presented in this MIS form a solid foundation on which practitioners can build. Details of knots, tree inspection for access, safe climbing and tree access methods are contained within the relevant MISs for those work tasks. This is one of a series of Minimum Industry Standards (MISs) produced by Arboriculture Australia Ltd in consultation with the national arboriculture community. These industry peer-reviewed standards cover the skills and equipment with which competent practitioners should be familiar.