The campaign was launched in January by Lothian and Borders Police, Fife Constabulary and Central Scotland Police.
They asked members of the public to report suspicions about people making money illegally to the charity Crimestoppers.
Up to 400 officers have been involved in the three-day operation, which begun on Wednesday.
The police say Crimestoppers reported a 31 per cent rise in all calls across the East of Scotland, which was used for the operation this week.
More top news
A look ahead over the festive period.
Boxes of Hope, Cumbria, the charity which gets local communities together and helps deprived children in Eastern Europe.
The Government has allocated Cumbria the third largest share of £625m that is being invested in the North West.