It can take up to five years to finish legal proceedings (including the time needed for investigation). Add to this that Italian courts and authorities are known for being notoriously slow in handling cases (sometimes this fact is used as a strategy by international lawyers to slow down proceedings in national cases, otherwise known as the 'Italian torpedo'). I think it is safe to say that expecting answers in a month time is very unrealistic.
In May 2005 I had a motorcycle accident in Italy, due to negligence of road workers firm.
Almost 9 years later, it still hasn't been in court.
This will give you an idea about the time it will take.
Omg! how is this possible ? Looks like "Italian torpedo" does work well for our misery