Gwent Police have raided three properties in Newport and Caldicot in connection with drugs and money laundering investigations.
The raids took place in Oakley Way in Caldicot and the Somerton area of Newport on Friday, 20 April.
A 34-year-old man from Newport was arrested on suspicion of possessing criminal property.
Police later released him after further investigation.
Officers seized two vehicles, two mopeds, several high-value bicycles and drugs from the three addresses.