Cash and drugs were seized after a series of raids in Halifax and Sowerby Bridge.
Officers from Halifax Central neighbourhood policing team carried out the searches which saw Class A and B drugs uncovered.
Two men - one in his 50s and one in his 40s - were arrested on suspicion of possessing Class A drugs with intent to supply after the team went to a building on Ripon Street, off Hopwood Lane in Halifax.
A woman in her 30s was arrested on suspicion of handling stolen goods from the same address and officers seized Class A drugs and various other electrical items suspected to be stolen property or proceeds of crime.
At a building on Hollins Bank in Sowerby Bridge, a man in his 30s was arrested on suspicion of possessing Class A drugs with intent to supply. Officers also seized Class A and B drugs and a large amount of cash.
Meanwhile Class B drugs worth an estimated £7,500 were seized along with cash from another building in Sowerby Bridge. A man and a woman, both in their 30s, were arrested on suspicion of possessing Class B drugs with intent to supply.
Anyone with information or concerns about drugs in their area should call their neighbourhood policing team via 101 or Crimestoppers, where information can be passed on anonymously, via 101.