http://www.uscourts.gov/FederalCourts/JuryService/about-jury-service.aspx
http://www.nolo.com/legal-encyclopedia/why-prosecutors-choose-grand-juries-preliminary.html
Explain why a grand jury is used rather than the prosecutor simply issuing a criminal charge.
4 answers
Look it up on line. There are several good explanations if you use your search engine and enter "grand juries." Basically, a grand jury is used for not only criminal investigations (it's an investigative body, not to determine guilt or innocence) but for civic wrongdoing, as if an office holder may have taken bribes, etc. But look it up for a more complete explanation.
okay thank you the nolo site helped a lot
You're welcome.