Most large companies and corporations hire private investigators on a regular basis. Some of them even such a constant need for their services, that they even employ them on a retainer basis. Private investigators that work in industry or commerce are usually asked to check insurance claims, carry out back ground checks among other projects of a similar nature.
In fact, up until around the middle of the 20th century things could be described as primitive. However, since then, technology in general and surveillance equipment for private investigators has come on in leaps and bounds.
Nowadays the average private investigator has a vast array of covert surveillance equipment at their disposal. Some of this equipment, by today’s standards is fairly simple and relatively inexpensive. However for there are some private investigator tools that are the height of sophistication, representing a major financial investment. These are the tools that set apart investigators who aspire to be at the top of their profession.