Up to 400 wraps of heroin and cocaine were found in an uninsured driver's vehicle.
In June police officers stopped a vehicle in Hardwick Lane, Sutton-in-Ashfield, after the manner of driving caught their attention.
Following the car and checking relevant details on the Police National Computer, police stopped motorist Gideon Adu.
Police asked the 22-year-old for his date of birth, which he couldn't provide.
Adu, of Plumstead Common Road, Greenwich, London, was found to have no valid insurance and no driving licence.
The car was searched and a bag was found underneath the driver's seat.
Adu was arrested on suspicion of possession with intent to supply Class A drugs, as well as having no licence and no insurance.
There were around 400 wraps in total.
Tests revealed there were around 300 wraps of cocaine and 100 wraps of heroin. Mobile phones and cash were also seized.
Adu pleaded guilty to possession with intent to supply a controlled drug of Class A (cocaine), possession with intent to supply a controlled drug of Class A (heroin), driving a motor vehicle with no licence and driving a motor vehicle without insurance.
He was jailed for 16 months.
Police Constable Joshua Ashton, of Nottinghamshire Police, said: “Drug offences are incredibly serious and we thoroughly investigate all reports made to Nottinghamshire Police.
“This was excellent policing by the arresting officers who were out on a proactive patrol and spotted Adu driving suspiciously.
“Drugs ruin lives and are often the catalyst for more serious and violent crimes, which can have a huge impact on local communities.
“We are constantly working behind the scenes to gather information about those who may be involved in drug supply and we remain committed to continuing our proactive work to target offenders who are causing misery in our communities and bringing them to justice.”
