Sentence
Life. She killed a policeman who was attempting to rape her girlfriend, Trisha.

Background
Middle-class parents: father a senior Naval officer, mother a gin-and-bridge Navy wife. They rejected her when she was expelled from boarding school for ‘lesbian activities’, as did her older brother, a married solicitor.

Profile
Nikki was a lipstick lesbian before the term was even invented. She identified her sexuality early in life and has never felt the need to deny or hide it. Her parents’ intolerance caused the young Nikki to run away from home, to travel the world in search of a lifestyle. Most of G-Wing’s inmates look up to Nikki. She is intelligent and streetwise, aware of her external image and the need to protect her status. She has a strong sense of natural justice, because of the injustice she has suffered. Her murder conviction has earned her respect and fear, and she has learned to use this power when dealing with bullying inmates and officers. Nikki is no-one’s fool and, as Helen soon learns, it takes a lot of effort to win her trust. Nikki’s fatal flaw, however, is her fierce jealousy which she finds impossible to contain, even to the point of self-destruction.

Last Seen
Finally getting her happy ending: freedom, and Helen (s3ep16).