Technical briefings and plain-English guides on covert listening devices, encryption, frequency hopping and UK surveillance law — written by the people who design and build the equipment.
Owning a listening device is legal in the UK — it is the use that the law cares about. A plain-English guide to reasonable expectation of privacy, RIPA, the Investigatory Powers Act, Ofcom spectrum rules and data protection.
The two most common covert listening devices work in completely different ways. Here's how a cheap GSM bug compares to an encrypted, frequency-hopping RF device on detectability, security and traceability — and why professionals choose the latter.