Just yesterday, I was talking about the Sanwa Throat Microphone, a type of communication machine that clips on the neck like a necklace. Recently I discovered the Taser Axon, who works as the Sanwa in the way that hides its head.
However, the Taser Axon is designed to be a recorder. It is designed to stay put at the head of a policeman, so that the images will be provided when an officer is in the rhythm.
This way, if there is any case against the officer, and the word of a civil action against the officer, the evidence will prove the Taser Axon testimony of a person in a trial.