Name:  Barbara Gordon
Team affiliations:  Justice League
Occupation:  Gotham Chief Prosecuting District Attorney

The duties of a district attorney are to manage the prosecutor's office, investigate alleged crimes in cooperation with law enforcement, and file criminal charges or bringing evidence before the Grand Jury. ... To perform other duties and exercise other powers as are or may be required by law.

The district attorney and his/her deputies are given prosecutorial discretion which means that they can add, drop, or amend charges filed against a defendant.

Abilities
Genius-level intellect
Trained computer scientist and security hacker
Skilled hand-to-hand combatant

Martial artistry
According to the character's fictional biography, Barbara Gordon trained in various Martial Arts having earned the highest degrees attainable and is described as being a "star athlete." She has been taking self-defense training since age six.  Her father, Commissioner Gordon, always made sure that she was versed in any type of combat and weaponry before his demise.

Intelligence and technological skill
Gordon is written as having a genius-level intellect and naturally possessing a photographic memory. Graduate of Yale University School of Law. Barbara Gordon developed many technological skills, including vast knowledge of computers and electronics, expert skills as a hacker, and graduate training in legal sciences.

She is the daughter of the deceased Commissioner James Gordon

Abilities

Dancing: Barbara took up being a ballerina as a young girl.
Driving: Barbara can drive a car as well as her motorcycle with skill.

Genius Level Intellect
Business Management: Barbara Gordon has achieved her position as Chief Prosecuting Attorney through hard work and expert legal skills, integrity and morals.

Eidetic Memory: Barbara can recall anything she sees.

Computer Operation: Expert in Computing and Computer Hacking

Indomitable Will
Ingegrity
Interrogation
Investigation
Leadership

Psychology: Barbara holds a degree in Forensic Psychology.

She is also an expert marksman and can handle many weapons with great skill.

Skilled driver in both car and motorcycle