Ghost busting is the ability to go into a place you know nothing about and find exactly where, purportedly, there has been psychic activity, that's technically what a ghost buster, ghost hunter is. How to be a good ghost buster, ghost hunter, paranormal investigator, now I believe the only way to do it is to go to a site where you know nothing, nothing which is the way I deal with my clients.
Tell me nothing, nothing, nothing. Please tell me nothing, because I'm going to have that in the back of my mind. Personally, the way I do it is to go into a place, go round myself and feel what I feel, not what anybody else has suggested. Only then can you yourself know how pure your experience is. I, for myself, in all my work have extremely strict rules, not for anybody else, for me. Otherwise, it's not authentic, it's not real, you already knew something.