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Officers and a police dog unearthed a hoard of class A drugs hidden beneath a car gear stick.
The vehicle was pulled over in Pinewood Place, Wilmington near Dartford, after a car had previously been reported as suspicious in Herne Bay.
A knife and mobile phones were also discovered in the vehicle.
A police spokesman said: "Working with a police dog, officers found a concealed bag in the car, containing cash, between 60 and 80 wraps of suspected class A drugs, three mobile phones and a locking knife."
The drugs were unearthed from beneath the gear stick, during the search on Wednesday.
A 22-year-old man from London was arrested on suspicion of possessing class A drugs with intent to supply, being concerned in the supply of a controlled drug, and possession of a bladed article.
A spokesman for the force added: "He has been released under investigation while enquiries by Kent Police’s County Lines and Gangs Team continue."