The Police said that USD to the value of USD 140,000 and Rs. 30 million were found in the house.
Based on information received by the Police an operation was launched to search the house in Dematagoda.
The Police found heroin and the money, including foreign currency in the house.
A suspect was arrested and handed over to the Harbour Police. The suspect is a 55 year-old resident of Dematagoda.
Investigations revealed the money was earned through drug trafficking.
The Police said the money had been transferred through the Mundial System.