It means chargesheeted...the trial can commence. because its already presented before a grand jury who have reviewed the evidence and come to an unanimous conclusion that there is enough wrongdoing for a case , chances of a conviction are very high. The only thing left is the opportunity to rebut the evidence presented so far by the defence team.in the usa trials proceed quickly..like 2-3 months max, so that you can't postpone the inevitable like in india, trial court judgement has power, unlike india where it's lots easier to appeal in High court and delay going to jail