CSI Questions 03/25/15

As of today, the questions that I have are more geared towards  the field of crime scene investigation. These questions include:

• What is forensic science?
• How much to forensic scientists make?
• What is the process for collecting evidence?
• How is evidence preserved?
• Does the accuracy of evidence ever "expire"?
• Do the television shows accurately portray crime scene investigations in reality?
• What is the procedure for an autopsy?
• Are autopsies only for investigations?
• What is the procedure for a victim that is dead vs. a victim that is still alive?
• What is the process after there is a possible suspect?
• What happens after the criminal is caught?
• If a person goes to jail for a crime they didn't commit and is later proven innocent, what happens to them and do they get anything for being wrongfully accused?