Landlords cramming too many people into shared houses for cash-in -hand payments were targeted by police yesterday.
Officers were out in force in College Grove tackling overcrowding at a number of houses on Pinderfields Road.
It was part of a joint operation with Wakefield Council which also targeted fly-tipping, drug use and anti-social behaviour.
Insp Richard Close, of the Central Neighbourhood Police Team (NPT), said: “We get numerous complaints about multi- occupancy houses where far too many people are living in those properties.
“These people are anti-social towards their neighbours, they don’t dispose of their litter correctly and they are up all night partying, making other people’s lives a misery.
“We are working with Wakefield Council to make a positive impact on the lives of the rest of the community.”
Officers were also working with the UK Border Agency carrying out checks to root out illegal immigrants.
Later the operation moved to Agbrigg where a number of houses were raided after tip-offs from the community.
Three people were arrested on suspicion of cultivating cannabis and released on bail pending further enquiries.
A spokeswoman for Wakefield Council said: “Wakefield Council and West Yorkshire Police were among agencies taking part in a multi-agency day of action at College Grove in Wakefield yesterday to encourage responsible landlords, support them in providing better services for their tenants and to root out rogue landlords and tackle the causes of anti-social behaviour.
“The operation follows a day of action in the same area few weeks ago.
“Regular street patrols are also now being carried out in College Grove, in consultation with residents and local community organisations, to improve the neighbourhood for everyone who lives there.”
Anyone with information should call police on 101 or Crimestoppers on 0800 555111.