Hillingdon police officers investigating money laundering offences, executed search warrants at a home in Mallard Way, Northwood, and business in Green Lane, Northwood and High Street, Ruislip early this morning (Wednesday, June 4).
Three women aged 54, 33 and 30 and two men aged 26 and 31 were arrested.
The police found a quantity of Class B drugs at the property and one man was re-arrested on suspicion of possession.
A business in Empire Way, Wembley was also searched.
They are all in custody at a west London police station pending further investigation.
Hillingdon CID is running the investigation with the the help of the Met's Specialist and Economic Crime Unit.
A raid at a Hayes strip pub last month resulted in six people being charged with drug offences. They have all pleaded guilty.
