Two have been arrested and drugs, cash and a firearm recovered in a series of police raids.
Officers targeted three properties in Crawley on Friday (August 8) and arrested a 24-year-old man of no fixed address and a 23-year-old woman from Crawley.
Both were arrested on suspicion of possession with intent to supply Class A and Class B drugs and money laundering.
The man was also arrested on suspicion of possession of a firearm with intent to cause fear of violence and the woman on suspicion of possession of a shotgun without a certificate.
Officers, who carried out the pre-planned operation, also found Class A and Class B drugs, several thousand pounds in cash and a firearm.