In this presentation, Jeff will discuss the pros and cons of trailing/ tracking dogs for Search & Rescue and general missing person cases. There are a wide range of parameters used when considering the use trailing/ tracking dogs; the primary element often being age of the track of the missing person.  Some practitioners claiming that their dogs are capable of detecting an individuals unique scent after many months or a year have passed are being used on actual missing persons and criminal cases. Jeff has been working, training, and testing trailing/ tracking dogs for 30 years and is considered an expert witness for criminal trailing/ tracking cases in the USA and Argentina. He created the first double blind testing model for tailing/ tracking dogs and to date, over 2000 dog teams have been evaluated. Jeff’s presentation will provide search managers with the best parameters to be used when deploying tracking/ trailing dogs while dispelling the controversial myths that habitually surround them.