Sonia Rolland IS Léa Parker!

Filmed in France from 2004-2006, I'm unsure which came first, the tv series or the graphic novel series (Or if they ran simultaneously)!
It hasn't aired in America, yet. But, I'm hoping it'll make it's way to one of the action or mystery-oriented cable/satellite channels!

Here's the official series synopsis (Translated from French)
Take a zest of glamour, a splash of humor, a pinch of suspense and a whole lot of action...here's Lea..a female cop with a whole new edge!
Lea's friends are amazed the gorgeous young martial arts expert is happy with her humdrum desk job. (They don't know that she's really an undercover cop for the French Secret Service, heading an elite police unit specializing in tough arrests!)
Of course, Lea's good at keeping secrets. She's as demanding and efficient at work as she is generous and sensitive in her private life.
Backed by a highly-skilled covert team, she handles surveillance, tracking and infiltration, assuming a new cover for each assignment: call girl, high-roller, dancer...
Her home life can be pretty lively too, especially when her little half-sister moves in. The inquisitive but naive Camille has a genius for causing chaos, sometimes even jeopardizing Lea's missions. But how can you stay mad at such a sweet kid?
At least Lea can count on her bff, Nicolas. The two of them are close... and maybe getting even closer!
Lea Parker is no ordinary detective series. It breaks new ground, combining action and humor as it focuses on the secret professional life of Lea, a beautiful but tough cop routinely facing danger in a dazzling variety of settings: luxury hotels, steam baths, casinos, on campus...