From IMDB:

Alice Nevers is a young and beautiful investigating judge. With her partner, policeman Fred Marchand, they use their own power to solve crimes to each their method.

From MHz Choice:

A popular and long-running French procedural, Alice Nevers is a tough and tenacious criminal prosecutor in a professional and personal partnership with police captain Fred Marquand.

From MHz Choice you can stream 4 seasons of this French detective series and continuing romance.  Seasons 1 and 3 have 8 episodes. Season 2 has 6 and Season 4 has 10 episodes. Each episode last about 50 minutes.

Initially Alice has a child with a convicted thief Mathieu and for quite a while in the series she plans on raising that child with Mathieu when he gets out of prison.  As the series progresses Fred Marquand and Alice fall in love but she remains faithful to Mathieu until Fred makes her accept the fact that Mathieu is dealing in an illicit diamond trade.

Nice mixture of crime and romance.