Dale Cregan's changed plea to guilty over the murders of PCs Fiona Bone and Nicola Hughes has come on the fourth day of the trial at Preston Crown Court.
The officers died from gunshot wounds last September.
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Police say that anyone who sees Whitehouse should not approach him, but instead call them on 999 and quote incident 23 of 18 February.
A cloudy day for most, with mist and murk, along with some outbreaks of rain, slowly spreading across western parts of the UK.
Wet weather to end the weekend.