When is a trial considered to have happened vis-a-vis double jeopardy? In other words, at one point is a person considered to be tried for an offense and cannot be tried again? At the arraignment or at the judgement?
To be more specific, if a person has been arraigned, can the prosecutor abandon the case and then indict the person again later for the same offense, or are they considered to be tried after the arraignment occurs.
If the double jeopardy only becomes effective when a judgement is rendered, then a prosecutor can theoretically start a trial, abandon it, then try the person again, abandon it again, and so on indefinitely. Is that how it is?