Amazon's Device can predict all ur secrets

 US police investigating a murder have tussled with Amazon over access to data gathered by one of its Echo speakers.

The voice-controlled device was found near to a hot tub where the victim was found dead amid signs of a struggle.

According to court filings, Amazon was issued with two search warrants but refused to share information sent by the smart device to its servers.

However, the police said a detective found a way to extract data from the device itself.

The accused killer has yet to be put on trial and it is not clear whether the information ultimately proved useful to the investigation.

Blood spots

Details of the case were first reported by the Information news site.

But it dates back to November 2015, when the suspect, James Bates, called the Bentonville, Arkansas police department to say he had found the body of a friend, Victor Collins, face down in water.

The court records say one of deceased's eyes and lips appeared to be swollen and suspected blood spots were found around the rim of the hot tub.

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Detectives say they learned that music had been streamed to the back patio at the time of death, which they thought might have been controlled via the Echo's smart assistant AlexaThe "always on" machine makes recordings of audio it hears from a fraction of a second before it detects a wake word - either Alexa or Amazon - until it judges the command to be over.

This audio is then transmitted to Amazon's computer servers, which interpret the request and tell it how to respond.

Although no recordings are meant to be made at other times, the device often becomes activated when it misinterprets speech as being its wake command.

Any captured audio might therefore have identified who was active in the early hours of the morning when the alleged murder is thought to have taken place, as well as what was said. Mr Bates claims to have been asleep at the time.

'Overbroad demands'

The case has echoes of Apple's refusal to help the FBI bypass the security code of an iPhone used by a gunman in 2015.

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In that case, the authorities said they were also able to ultimately extract information without the tech firm's co-operation.

"Amazon will not release customer information without a valid and binding legal demand properly served on us," a spokesman for the company told the BBC.

"Amazon objects to overbroad or otherwise inappropriate demands as a matter of course."

He added that utterances are not stored by Echo devices, and the associated audio is only accessible via the cloud and can be deleted by the relevant account holder.