Amazon is continuing to resist efforts by prosecutors in a US murder case to obtain recordings from one of its Echo smart speakers.
In its first formal legal response to the request for audio recordings to be handed over, Amazon said prosecutors had failed to establish it was necessary.
It said that it had to weigh customer privacy against such requests.
Prosecutors argue that the data could throw light on what happened.
Police want any information from the Echo that may be on Amazon’s servers on the night of Victor Collins’ death.