salisbury

Police are investigating whether a container, such as a syringe, carried nerve agent.
'It all looks like consistent physical extermination of the evidence.'
Officers have scoured more than 4,000 hours of CCTV footage.
Despite police cordons and a sensational press, life goes on for city hit by poisoning.
The agent could be applied with an aerosol spray or transported in liquid form.
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A 'very small amount' of the nerve agent was used in the attack.