A new kind of police siren that emits low-frequency vibrations ... "Infrasound is low frequency sound energy that affects the nervous system and prolonged exposure can lead to progressive medical ...

San Francisco Police Chief Bill Scott said Wednesday his department was still investigating the police chase that injured several bystanders in the Mission District on Super Bowl Sunday, while ...

Police officers were left "confused" by a bird when it convincingly mimicked the sound of the sirens on their cars. Thames Valley Police said staff initially thought their vehicles had developed a ...

A police inspector has told the BBC how he was the first to be tricked by a bird mimicking the sound of a siren. Simon Hills said the two-tone impression had officers believing a car was faulty at ...

A man pulled over by officers while driving a hire car fitted with homemade police lights and sirens has been arrested ... best of BBC Radio Merseyside on Sounds and follow BBC Merseyside on ...