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An employer has accused his domestic worker of buying and hiding a device to interfere with a web-camera at his home.

The employer surnamed Chan, who hired a Filipina domestic worker to take care of his children, installed a webcam so his wife could monitor what was happening at their home, news website reported.

But Chan’s wife found the webcam did not work properly and asked a technician to check – and found the WiFi signal was normal. She bought another router but found the camera was still disconnected.

A friend of the family who was an IT expert suspected that the WiFi signal has blocked or interfered with.

To check this, the employer’s wife moved the domestic worker’s suitcase to the building lobby when the worker was on holiday. Surprisingly, the WiFi signal at home returned to normal. And when the wife brought the suitcase back, the WiFi signal was blocked again.

The employer suspected that the domestic worker had hidden a device in the suitcase that could interfere with the WiFi signal, blocking the webcam from operating.

The employer suspected that the worker did not want to be monitored on the camera.

However, the report did not say if the employer found a device in the worker’s suitcase or not.

In fact, such devices can easily be found on, a Chinese shopping website. The gadget that blocks WiFi signals is promoted as a device to “get your children off internet addiction” and sells for around 118 Chinese yuan (US$17).

But they are illegal. Under the Telecommunications Ordinance, it is an offense for any person to possess a radio apparatus (including radio jammer) without a valid license, or to intentionally use such a radio apparatus to cause harmful interference with legitimate radio apparatus.

Someone convicted of that offense could face a fine of up to HK$50,000 (US$6,370) or two years in jail for not having a license, and a fine of up to $50,000 and six months jail for using the device.

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