 Usually when investigators are conducting operations it is quite difficult for them to not be detected prior to their arrival because of the modes of transportation across land or by flight and because of that many times even if the information that they have received beforehand is good by the time they get there perpetrators have had the opportunity to act and to remove the victims and so on. Most of the locations in the interior are camps in terms of the mining camps and it is very simple and easy to get concealed in the jungle or moving to another location where the investigators would be unaware of that movement and where they would have gone. Sometimes however they remain there and they give instructions to the victims as to what to say to the law enforcement officers so they are not as liberty to say what exactly has happened or is happening in relation to them but they have to give the story that the perpetrators have instructed them to give because persons are there and they are observing what they are seeing and how they are conducting themselves while the officers are there.