This person is a prosecutor.
Prosecutors are attorney who work for the government on a local, state or federal level. <em>The prosecutor has three main tasks: to investigates crimes, to decide whether or not a person accused of crimes should be officially charged, and to appear in court.</em>
Once a suspect is arrested, a prosecutor must look at the evidence and decide whether or not to file charges against that person. Once he determines that, he files formal paper work to charge that person with a specific crime.
The prosecutor determines which specific charges to file. After he files the charges, the prosecutor continues with the research of the particular criminal case. He works closely with the police and the crime investigators. His duty is to convince a jury or a judge that the suspect is guilty. After the jury convicts the criminal, the prosecutor presents a sentence recommendation.
