Police in Fenland discovered cannabis plants, illegal weapons and wads of cash inside a Whittlesey building.
Officers from Cambridgeshire Police received "intelligence" that drugs were being grown in the residential property and carried out a warrant on Friday, April 22.
They recovered the illegal items, but the building owner was not present and officers aim to interview them "in due course".
A Cambridgeshire Police spokesperson said: "A section 23 Misuse of Drugs Act warrant has been successfully executed today at a residential property in Whittlesey following intelligence suggesting drugs were being grown at the location.
"A number of plants at various stages of growth have been seized from the location.
"On top of the cannabis plants, a number of illegal weapons and bundles of cash were also seized.
"Finally, the entire property was bypassing the electricity meter with lots of dangerous wiring in situ."
The spokesperson added that community concerns and tip-offs can be reported to police online (https://www.cambs.police.uk/).
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here