An estimated 15 to 20 kilos of drugs were found, along with lab equipment used in their production.
Specialist search officers from Essex Police assisted the NCA in the operation, which continued through Saturday. Hutton
The 73-year-old man has been bailed pending further enquiries, while the 44-year-old remains in custody.
NCA Regional Head of Investigation Jacque Beer said:
“We suspect the flat was being rented exclusively for the purpose of housing a drugs factory capable of producing large quantities of ketamine.
“Working with our policing partners we are committed to tackling the drug trade, which harms communities and fuels further crime.”
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