I think that it kind of depends on the kind of evidence you have. I will do my best off of the info I have.
<Indent> When going backpacking these simple steps to surviving could potentially save your life. By being prepared people can pack things that will aid in their survival, keep them hydrated and with plenty of energy, and items that will help with navigating through the wilderness and terrain they are going through. Being aware of your surrounding ties in directly with having a map and knowing what kind of terrain you will be walking through, a little bit of research about the area may help in awareness and knowing what you will be facing ahead of time. By never traveling alone you ensure that other people will be there for you if you get hurt and cannot walk, they will be able to contact emergency services and aid you while rescue comes on the way. In conclusion, these three techniques while backpacking can be very helpful in your survival and in being prepared for what is to come.