Harrow Council said it will continue to help the police tackle those illegally supplying drugs, after a recent operation recovered £30,000 worth of class A substances.

Heroin, cocaine, cannabis – as well as weapons including a knife and some bullets – were seized as part of a raid at a house in Orchard Grove, Edgware.

Cllr Krishna Suresh, responsible for crime and community cohesion at Harrow Council, said it is important to stop these things going out onto the streets.

He said: “The council will continue to work jointly with the police to clean up the borough and bring the perpetrators of these kinds of crimes to justice.

“We jointly need to tackle these kinds of anti-social behaviour issues in our community head-on, as they can lead to gang related crime. I commend the police for their swift and urgent action.”

Police uncovered more than a kilo of cannabis during the operation, while a specialist team found an illegal taser hidden away and a knife stashed in the garden.

Inspector Tanya Sprunks, who covers Harrow, explained that those caught had unsuccessfully tried to flush some of the drugs down the toilet.

She did not say whether this operation was linked to gang activity in the area, though pointed out that such actions can open the door to wider problems.

“We will continue to work with our partners in the borough to crack down on the supply of illegal drugs across Harrow and London, which can, and often does, fuel further violence and exploitation,” she said.

North-west London, like the rest of the capital, has experienced a series of violent incidents over the past 12 months.

Its police services have recently merged as the Metropolitan Police looks to find millions of pounds worth of savings due to various cuts.

Borough commander Simon Rose will attend a public meeting on November 8 at Harrow Civic Centre to explain the details of the new system.