The US House Financial Services Committee said yesterday it released the report to "shed light" on whether the Department of Justice made prosecutorial decisions based on the size of the institution under investigation.
It argued that HSBC was not prosecuted because of fears for the global economy.
The report called, "Too Big to Jail: Inside the Obama Justice Department's Decision Not to hold Wall Street Accountable," accuses Britain's Treasury chief George Osborne of intervening in the investigation into the London-based bank.