Often the governments of these nations are in the know when such huge funds cross into their banking system. To be sure there are financial regulations that compel disclosure of huge funds whenever they are lodged. It is worse when a legitimate government like the Nigerian requests that stolen funds be returned and those countries begin to create hurdles. It is on record that Swiss Banks hold the hugest deposits of illegal or stolen funds. Already there are speculations that officials of some anti-corruption agencies have lined up their pockets with stolen funds which were seized from indicted citizens.
Source: The Guardian December 04, 2017 04:07 UTC