From the use of spy cameras and night vision goggles to highly sensitive equipment that can track people who are more than ten miles away, the private investigators melbourne are trained in the use of various kinds of equipment. They are not only able to use these items very effectively, they also have a good track record of avoiding violence when it is necessary. When the private investigators melbourne are trying to track a criminal, they need to be really very careful about the whole thing, so that they will be no problem at a later date.