Justice Brown said a Citizens Grand Jury is a check on a corrupt government, judiciary, and election system
https://constitution.congress.gov/browse/amendment-7/
Ketanji Brown Jackson is a Justice on the U.S. Supreme Court.
https://www.supremecourt.gov/publicinfo/press/oath/oath_Jackson.aspx
At her Senate confirmation hearing, she confirmed that a Citizens Special Grand Jury is in the Seventh Amendment.
Its purpose in common law is to override a corrupt judge, prosecutor, or judicial system.
It starts with a complaint for money with one’s local county, state, or federal court.
Then demand assignment to a Special Civilian Grand Jury instead of a Judge.
Of course, it depends upon which government is wrongfully spending taxpayer money.
Like rigged voting machine systems never verified for accuracy.
Here is one example of a federal Special Civilian Grand Jury Petition: