Another good idea is to keep a record of all vandalism,taking note of date,time,place and any other significant info. People are creatures of habit and sooner or later,that is usualy their undoing. I for one will continue to be observant when in the area.
If the vandal happens to be reading this forum,they should know that there may be eyes upon them...watching in the silence of the desert. Perhaps our brother Wizard would like to start a data base on this issue. I know that many here have a theory about who is responsible for these acts, what we need is some proof. Hopefuly this activity will stop. If it dosent,sooner or later the vandal/thief will be caught. We are watching!