Officers seized £6,000 at East Midlands Airport during a joint operation between the police and UK Border Force.
During the activity, a Border Force dog sniffed out the cash, which was double-bagged inside a 23-year-old man’s luggage.
The Leicestershire resident, who was on his way to Poland, was questioned around the origins of the money before it was seized under the Proceeds of Crime Act 2002 for further investigation.
The aim of the operation was to intercept any cash being transported through the airport which came from or was destined to fund serious and organised crime.
Specialist officers from the East Midlands Special Operations Unit (EMSOU) engaged with hundreds of travellers over the 48 hours and 14 other cases were referred for further checks.
Neal Broad, Acting Assistant Director, Border Force Midlands, said: “Working with law enforcement colleagues like the police we are determined to do all we can to combat criminality and seizures like this are an excellent example of that work in action.”