One officer was standing guard at the entrance to the police station in the north of the city this afternoon.
An ambulance was called there at 11am after an officer was killed in an incident with a firearm.
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Turning colder with showers in the west and windy for many, with severe gales in exposed northern and western parts.
The elderly woman's son complained to the council that his mother had been deprived of her liberty in an 'unprecedented' legal case.