Police in Cheshire are joining a huge crackdown on cannabis farms.
The force, alongside the six others in the region, are taking part in a month of action aimed at catching those growing and producing the drug.
There will an increase in police activity, including a number of strike days, to raise awareness of the problem, which has seen a huge in the last few years.
More than 5,120 cannabis factories with an estimated potential street value of around £140 million have been discovered across the North West in the last three years.
There has been a particular rise in small-sale farms hidden within rented properties.
Chiefs are now asking for the public's help in bringing drug producers and dealers to justice.
Detective Chief Inspector Pete Shaw from the Cheshire Police's crime operations department said: "We are fully committed to tackling drugs supply and use in Cheshire.
"Production and cultivation is more of a problem for society today than ever before.
"Organised crime gangs use coercive methods on some of the most vulnerable people in our society to forcing them to grow cannabis for their profit.
"We can only act if members of communities are willing to work with us, information is key to disrupting the supply of cannabis on the streets."
The force says neighbourhood officers will be at the forefront of the campaign building relationships with local residents who can pass on their concerns.
Merseyside, Greater Manchester, Lancashire, North Wales and Cumbria are the other forces joining the campaign.
Anyone with any information about cannabis cultivation is asked to call the new non-emergency number 101 or Crimestoppers, anonymously, on 0800 555 111.
