Presidents retain their title after leaving office btw
It's a title, and nothing more. It confers absolutely no immunity from indictment, investigation or prosecution.
Depends on whether resigned after impeachment, the nature of the indictment etc.
Here's a freebie for you:
Someone is either a President, or a private citizen. A President cannot be charged with a crime- and that is the official stance of the Office of Legal Counsel, and that is that.
