Clive Chamberlain from Dorset Police Federation is among those taking part in the march. Officers from every police force in the country are taking part in the protest in London.
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A teenage girl who drowned when a speedboat capsized was wearing a buoyancy aid that was too large for her.
An inquest into the death of a 14-year-old girl who died after becoming trapped under a speedboat in Devon resumes today.
This Plymouth super-fan has come from Australia to watch his team in the League 2 final - but is leaving tonight!