Norfolk Police say no criminal charges will be brought despite evidence of a "sophisticated and orchestrated" hacking attack on University of East Anglia's computers in 2009.
Detectives launched an inquiry after hacked emails from the University of East Anglia's Climatic Research Unit (CRU) were leaked online before crunch UN climate talks.
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Essex Police is increasing armed patrols across the county following the terror attacks in London.
A timeline of exactly what happened.
The car reportedly used as part of a terror attack in Westminster was registered in Chelmsford.