The Borough of Camden will be the first to take delivery of the new "body-worn-video" cameras, with further trials in:
Officers will store material from each incident and keep it on file for a month, unless it is required for the purposes of evidence.
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Expect cloudy conditions with some light rain on Saturday morning before brighter spells develop later in the southeast.
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Members of the London community have rallied round to offer their help to residents of the evacuated Chalcots estate in Camden.