What is an indictment?

 https://thehill.com/homenews/3906654-what-is-an-indictment/

The way it works for felony charges in the U.S. is that a grand jury will examine all potential evidence to determine if a crime was committed. If the jury, generally made up of 16-23 people, decides there’s enough evidence that a crime occurred, an indictment will come.

Despite Trump’s claim that he will be arrested Tuesday, it’s unlikely the former president would be arrested, since Trump officials themselves told Associated Press they would “ follow the normal procedures” if an indictment does come down. An arrest would only happen in the event an indicted person doesn’t surrender, according to AP.