More than 40 police officers executed a search warrant early this morning at a caravan park in Irchester.
The raid was part of Operation Guardian, Northamptonshire Police’s countywide operation to tackle burglary, vehicle crime and related offences.
Officers seized two vehicles, a flatbed trailer and two twin-axle trailers.
They also discovered cannabis and hydroponics equipment in a caravan.
A 20-year-old man and a 37-year-old woman were arrested on suspicion of conspiracy to defraud.
Inspector Pauline Sturman, who led today’s operation, said: “This morning’s operation is part of an ongoing investigation into a number of offences.
“We are working hard to disrupt and prevent criminal activity in our communities and today’s activity demonstrates our continued commitment to target those who commit crime in our county.”