Electronic eavesdropping sweeps can be expensive. (The Technical Division of Sherlock Investigations is in the mid-range category.) The more sophisticated the threat the more expensive sweeps can be.
In the world of corporate espionage or government espionage the devices used are extremely sophisticated. The security office of corporations and embassies often have their own sweep teams.
Most people, though, don’t deal in such high-security threats. Still, they need protection, because the threats are often real.
As often happens, an employee that leaves to join or start another company often steals secrets. Occasionally, he will bug the previous office so that information can continue to be transmitted to a listening post elsewhere.
Business partners can have a parting of the ways. Before the partner leaves, and while he still has the authority, he might have an extension of the office phone installed in his home. Just having it installed is legal. Eavesdropping is not.
In divorce situations, occasionally the wife complains that her soon-to-be-ex inexplicably knows things about her. She tells us "it's as if he tapped my phone or placed a bug in my home or car". He may have done just that.
Considering what people can learn about you, the cost of electronic sweeps is relatively inexpensive. In fact, some firms have precautionary sweeps done on a regular basis throughout the year.
Remember, Technical Surveillance Countermeasures (Bug Sweeps) is a technical skill , not an investigative one. Beware of the private investigator who uses a bug detector obtained from the Internet. Unless he is highly trained, it is useless.
If you need a skilled consultant, contact us.