A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. Bugging, also known as wiretapping, is a common technique used in surveillance bug, espionage or police investigations. Private detectives are often pictured in alleyways, following suspects and making deductions. The truth is, in this day and age, private investigators are experts at using the most modern and advanced technology in their efforts to investigate crimes. It's unfortunate, but we live in an era where advanced Surveillance bug equipment is available at the drop of a hat, either online or at your local electronics store. Private detectives are trained to identify and protect victims of illegal surveillance. Many are specialists in bug detection, bug sweeping and technical counter-surveillance measures. The use of electronic countermeasures to detect and remove bugs or other technical surveillance devices is called technical counter-surveillance.
Private detectives can be hired to locate and deal with these devices and locate the person or persons responsible and put a stop to what's going on. This is known as inverse surveillance bug. Bug Detection Counter Surveillance uses a variety of methods to deal with the ever-expanding forms and industrial espionage. This includes auditing security systems to identify vulnerabilities, surveying existing counter-surveillance methods, detecting wiretaps and bug sweeping, RF monitor services, and detection eavesdropping devices. According to our survey about audio Surveillance bug systems, many investigators and security operators have shown more interest in voice recorders than bug transmitters. It would appear that a bug operating on a GSM or radiofrequency network is less valuable than an audio recorder. Not to mention the surveillance operators who insist that bug transmitters must only be used for a limited number of investigational purposes.
Most common surveillance devices emit radio frequencies to transmit data, so an expert will start by attempting to detect a radio signal. The simplest way to use sweep bug equipment is to tune a radio. The bug is transmitting a radio signal containing the Surveillance bug information being collected, be it video, audio, or other data. Operators must set their sweeping bug device at the correct frequency to capture the radio signal. This is similar to tuning your car radio for the latest news. However, this will only defeat the most basic of bugs because attackers may avoid detection using techniques like burst transmission or spread spectrum transmission. Burst transmission collects information over time and then sends it out in a brief burst. This means that a person who is sweeping for bugs will not be able to detect any signal unless they are listening at the right moment. Spread spectrum transmission, on the other hand spreads the signal across a wider radiofrequency spectrum than regular radio transmission. The spread spectrum transmission is not possible to pick up, so the Technical Surveillance countermeasures equipment must be tuned.
