District attorney
In many jurisdiction
Jurisdiction is the practical authority granted to a formally constituted legal body or to a political leader to deal with and make pronouncements on legal matters and, by implication, to administer justice within a defined area of responsibility...

s in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, a District Attorney (DA) is an elected
An election is a formal decision-making process by which a population chooses an individual to hold public office. Elections have been the usual mechanism by which modern representative democracy operates since the 17th century. Elections may fill offices in the legislature, sometimes in the...

 or appointed government
Government refers to the legislators, administrators, and arbitrators in the administrative bureaucracy who control a state at a given time, and to the system of government by which they are organized...

 official who represents the government in the prosecution
The prosecutor is the chief legal representative of the prosecution in countries with either the common law adversarial system, or the civil law inquisitorial system...

 of criminal offenses
Crime is the breach of rules or laws for which some governing authority can ultimately prescribe a conviction...

. The district attorney
Attorney at law
An attorney at law in the United States is a practitioner in a court of law who is legally qualified to prosecute and defend actions in such court on the retainer of clients. Alternative terms include counselor and lawyer...

 is the highest officeholder in the jurisdiction's legal department and supervises a staff of assistant (ADA) or deputy district attorneys. Similar functions are carried out at the local level in other jurisdictions by officers named the Commonwealth's Attorney
Commonwealth's Attorney
Commonwealth's Attorney is the title given to the elected prosecutor of felony crimes in Kentucky and Virginia. Other states refer to similar prosecutors as District Attorney or State's Attorney....

, State's Attorney
State's Attorney
In the United States, the State's Attorney is, most commonly, an elected official who represents the State in criminal prosecutions and is often the chief law enforcement officer of their respective county, circuit...

, County Attorney
County attorney
A county attorney in many areas of the United States is the chief legal officer for a county or local judicial district. It is usually an elected position...

, or County Prosecutor.