A 51 year old woman has also been arrested in connection with the cannabis factory in Arterial Road, Wickford and is currently in police custody being questioned on suspicion of production of cannabis and abstraction of electricity.
The 56-year-old man arrested yesterday has been released on police bail, pending further enquiries until August 8.
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It will be a dry day and very warm with bright and sunny spells.
Armed officers will be on patrol at major infrastructure sites across Essex and the county will see more police patrols.
The major party leaders' campaigns for the General Election will remain suspended on Wednesday following the Manchester terror attack.