Members of political party Sinn Fein were involved in a series of robberies in Northern Ireland, the Independent Monitoring Commission has said.
More than £26m was stolen from the Northern Bank
The commission reports to the British and Irish government on a number on things like security and violence.
It said that Sinn Fein should share the blame for a number of crimes, including a £26m bank robbery in December 2004.
Sinn Fein is connected to the IRA, who have denied claims by the police that they were behind the raid.
The findings of the commission are based on intelligence information.
The IRA has also been blamed for other robberies in Belfast and County Tyrone.
The report said that that some of the senior members of Sinn Fein are also members of the Provisional IRA and were involved in giving permission for the robberies to take place.
After it was accused of the December 2004 robbery the IRA withdrew an offer to get rid of all its weapons.