No.
It is known as a pre-sentencing investigation.
The jury does not directly decide on a death sentence or life sentence. If a defendant is found guilty, there will be a separate sentencing phase where the jury will consider evidence and decide on the appropriate punishment, which could include the death penalty or a life sentence.
For every offence, Magistrates have very strict sentencing guidelines to which they must adhere and they can also take advice from the Legal Advisor to the Court.
No.
Yes, a prosecutor reviews misdemeanor charges. It is the responsibility of the prosecutor to decide whether there is enough evidence to pursue a conviction and whether it is in the best interest of the public to proceed with a case.
No.
Police
Generally speaking, in the US, the local or state prosecutor decides if an alleged attacker will be charged with a crime. If there is enough evidence, in the mind of a prosecutor, then legal proceedings will begin. In some cases, however, the prosecutor will have a Grand Jury decide to either follow the prosecutor's recommendation, or not to.
Not in person. She should speak with the prosecutor handling the prosecution of the case. ONLY the prosecutor gets to decide what they will present to a Grand Jury in order to gain an indictment.
Will you ever decide what to do?
I am trying to decide, right now.
Generally not. The prosecution is in the hands of the prosecutor, and only the prosecution can decide to drop or pursue a case.