How to Detect a Spy Bug in a House

By Marshal M. Rosenthal

It’s no longer enough just to protect your home from break-ins--now you need to be assured that there is no hidden spy device listening in to your every word. Detect a spy “bug” by using a device that “listens” to the radio frequencies emitted by the bug. Once you have detected the spy bug, you can find where it is located and then destroy it. There are many devices that can detect the high-frequency signals that spy bugs use, and they all work in a similar fashion, although there are slight differences between them. You can find them at electronics stores as well as at speciality “spy” stores.

Things You'll Need

  • High-frequency spy bug detector
  • Phillips screwdriver
  • Needle-nosed pliers

Step 1

Turn on the high-frequency spy bug detector. Hold the detector against your chest at about mid-breast level. Slowly move throughout a room or space that you want to search for a hidden bug. Once you have moved throughout the room or space, aim the spy bug detector at the ceiling and repeat moving throughout the room or space.

Step 2

Once you have moved throughout the room or space with the detector aimed at the ceiling, aim it at the floor and repeat moving throughout the room or space.

Step 3

Stop moving when the high-frequency spy bug detector beings to beep and LED lights appear on its display. Slowly continue to move in the direction you were going. Continue moving in the direction as the beeps from the high-frequency spy bug detector go from slow to rapid and the LED lights increase in intensity on the display.

Step 4

Stop when the beeps from the high-frequency spy bug detector are sounding at their fastest rate and the LED lights are lit up at their highest intensity.

Step 5

Search the immediate area for the hidden spy bug. Remove the hidden spy bug from the wall, floor or ceiling using a Phillips screwdriver. Destroy the spy bug by breaking its connections on the back using needle-nosed pliers.

Tips & Warnings

  • Your lawyer can help you if the spy bug was planted by a state or federal agency.
  • Finding one spy bug does not mean that there aren't others also hidden throughout your home.