Before your indictable offense can move to trial, the government has to show the evidence they have against you to a grand jury.
The grand jury is made up of a group of “regular” people who will examine the evidence for your arrest and decide whether the government has “enough” of a basis (evidence) to bring “formal charges”.
A grand jury does not decide guilt or innocence.
Their role is to make sure that the government isn’t harassing citizens & making arrests willy nilly.
The grand jury is simply asked to answer the following question:
Does the government have enough evidence to make the arrest?
This standard is called “Probable Cause”.
In other words, the grand jury must determine if enough probable cause exists to charge you with the crime(s) that the government believes that you committed.
Once the grand jury votes in the government’s favor, your felony charges become official.
When the grand jury approves the indictment, this is called a “True Bill”.
When the grand jury rejects the indictment, this is called a “No Bill”.
If the grand jury No Bills the indictment in your case, the government can try again.