From the Executive Summary: "In early February 2021, U.S. Senate Commerce, Science, and Transportation Committee Minority Staff launched an investigation into alleged misconduct in the Investigations and Threat Management Service (ITMS) at the Department of Commerce. The investigation began after whistleblowers reported a variety of improper activities dating back to the mid-2000s involving abuses of authority, mismanagement, and reprisal against Department employees. Minority Staff conducted over 100 interviews and reviewed thousands of documents supporting allegations from over two dozen whistleblowers. The Department of Commerce established the ITMS to provide security services to the Secretary during the George W. Bush administration. Soon after it was established, the unit began performing a law enforcement mission. Under the Obama administration, the ITMS began regularly conducting criminal investigations related to threats against the Secretary and departmental assets, and eventually began using counterintelligence tools to gather information about both foreign visitors and U.S. citizens. The unit continued these activities until early in the Biden administration, despite lacking proper authorization to perform law enforcement functions on behalf of the Commerce Department."
U.S. Senate Committee on Commerce, Science and Transportation: https://www.commerce.senate.gov/