 The entrance of Nina Cassady's character creates instant tension within the 27th Precinct.The issues of a detective's experience and gender become central to her tenure on the show, as she grapples with the perceptions of her coworkers, superiors, and that of the media.Almost immediately, she is looked down upon for having less experience than her fellow homicide detectives, and her promotion to homicide is seen as a fluke after her high-profile shootout in a beauty parlor.