Inspector: The FBI should have collected more intelligence before the Capitol riots.

So says the report released Thursday by the General Inspector's Office.

According to the report, no secret FBI agent was present and none of the bureau's informants were authorized to attend.

The report compiled by the Office of the General Inspector near the Justice Department rejects a conspiracy theory, which highlighted some republican lawmakers in Congress, that the FBI had played a role in promoting events that day, when protesters who were determined to overturn the 2020 election outcome, which led to Democrat President Joe Biden, entered the building by force, crashing with police.

The revision report was released nearly four years after this grim chapter in history that shook the foundations of American democracy.

Although limited in the issues it deals with, the report aims to shed light on issues that continue to break public debate, including whether major failures of pre-summer detection sources had occurred and whether anyone in the crowd was acting on behalf of the FBI.

This is the last major investigation into a special day in the history of the United States that has so far sparked investigations by lawmakers as well as the rise of state and federal indictments.

The inspector's office found that 26 FBI informants were in Washington for the election-related protests on January 6th and that although three entered the building or the surrounding area, none of them were authorized by the bureau to do so, nor to violate the law or encourage others to do so.

The report also found that the FBI had taken appropriate steps to prepare for the events on January 6th, but that it had failed to gather important intelligence from its 56 offices on the ground, reports VOA.