Originating from Batman the animated series.
one of the heroes called in to assist with Starfire's mission. Batgirl infiltrated the facility to evacuate civilians.
After settling on the planet she set up a surveillance network to help her keep track of any wrong doings on the planet which are few and far between. But really she set it up because she likes to watch.
for a while she was crippled by the Joker after temporarily moving back to her earth. she has since recovered thanks to the efforts of Taun We.